Home / 759,503.34-1,138,584.51-286,520.85

Finding the Fourth Proportional to 759,503.34, 1,138,584.51 and 286,520.85

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Solution

The fourth proportional to 759,503.34, 1,138,584.51 and 286,520.85 is: 429,528.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,503.34 : 1,138,584.51 = 286,520.85 : x
  2. Step 2: Convert to fraction form
    759,503.34/1,138,584.51 = 286,520.85/x
  3. Step 3: Cross multiply
    759,503.34x = 1,138,584.51 × 286,520.85
  4. Step 4: Simplify right side
    759,503.34x = 326,228,201,602.03
  5. Step 5: Solve for x
    x = 326,228,201,602.03/759,503.34
  6. Step 6: Final answer
    x = 429,528.33

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.