Home / 985,160.72-1,359,494.64-555,437.12

Finding the Fourth Proportional to 985,160.72, 1,359,494.64 and 555,437.12

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Solution

The fourth proportional to 985,160.72, 1,359,494.64 and 555,437.12 is: 766,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,160.72 : 1,359,494.64 = 555,437.12 : x
  2. Step 2: Convert to fraction form
    985,160.72/1,359,494.64 = 555,437.12/x
  3. Step 3: Cross multiply
    985,160.72x = 1,359,494.64 × 555,437.12
  4. Step 4: Simplify right side
    985,160.72x = 755,113,787,497.04
  5. Step 5: Solve for x
    x = 755,113,787,497.04/985,160.72
  6. Step 6: Final answer
    x = 766,487.92

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.