Home / 759,869.69-1,139,804.28-286,444.35

Finding the Fourth Proportional to 759,869.69, 1,139,804.28 and 286,444.35

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Solution

The fourth proportional to 759,869.69, 1,139,804.28 and 286,444.35 is: 429,666.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,869.69 : 1,139,804.28 = 286,444.35 : x
  2. Step 2: Convert to fraction form
    759,869.69/1,139,804.28 = 286,444.35/x
  3. Step 3: Cross multiply
    759,869.69x = 1,139,804.28 × 286,444.35
  4. Step 4: Simplify right side
    759,869.69x = 326,490,496,111.82
  5. Step 5: Solve for x
    x = 326,490,496,111.82/759,869.69
  6. Step 6: Final answer
    x = 429,666.43

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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.