Home / 759,493.55-1,138,569.89-286,511.06

Finding the Fourth Proportional to 759,493.55, 1,138,569.89 and 286,511.06

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Solution

The fourth proportional to 759,493.55, 1,138,569.89 and 286,511.06 is: 429,513.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,493.55 : 1,138,569.89 = 286,511.06 : x
  2. Step 2: Convert to fraction form
    759,493.55/1,138,569.89 = 286,511.06/x
  3. Step 3: Cross multiply
    759,493.55x = 1,138,569.89 × 286,511.06
  4. Step 4: Simplify right side
    759,493.55x = 326,212,867,481.85
  5. Step 5: Solve for x
    x = 326,212,867,481.85/759,493.55
  6. Step 6: Final answer
    x = 429,513.68

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Double scale
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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.