Home / 949,139.92-1,309,813.14-519,420.16

Finding the Fourth Proportional to 949,139.92, 1,309,813.14 and 519,420.16

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Solution

The fourth proportional to 949,139.92, 1,309,813.14 and 519,420.16 is: 716,799.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,139.92 : 1,309,813.14 = 519,420.16 : x
  2. Step 2: Convert to fraction form
    949,139.92/1,309,813.14 = 519,420.16/x
  3. Step 3: Cross multiply
    949,139.92x = 1,309,813.14 × 519,420.16
  4. Step 4: Simplify right side
    949,139.92x = 680,343,350,748.90
  5. Step 5: Solve for x
    x = 680,343,350,748.90/949,139.92
  6. Step 6: Final answer
    x = 716,799.85

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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.