Home / 947,129.24-1,307,016.96-517,411.28

Finding the Fourth Proportional to 947,129.24, 1,307,016.96 and 517,411.28

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Solution

The fourth proportional to 947,129.24, 1,307,016.96 and 517,411.28 is: 714,015.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,129.24 : 1,307,016.96 = 517,411.28 : x
  2. Step 2: Convert to fraction form
    947,129.24/1,307,016.96 = 517,411.28/x
  3. Step 3: Cross multiply
    947,129.24x = 1,307,016.96 × 517,411.28
  4. Step 4: Simplify right side
    947,129.24x = 676,265,318,255.31
  5. Step 5: Solve for x
    x = 676,265,318,255.31/947,129.24
  6. Step 6: Final answer
    x = 714,015.88

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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.