Home / 898,526.76-1,239,966.18-516,628.20

Finding the Fourth Proportional to 898,526.76, 1,239,966.18 and 516,628.20

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Solution

The fourth proportional to 898,526.76, 1,239,966.18 and 516,628.20 is: 712,946.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,526.76 : 1,239,966.18 = 516,628.20 : x
  2. Step 2: Convert to fraction form
    898,526.76/1,239,966.18 = 516,628.20/x
  3. Step 3: Cross multiply
    898,526.76x = 1,239,966.18 × 516,628.20
  4. Step 4: Simplify right side
    898,526.76x = 640,601,495,634.28
  5. Step 5: Solve for x
    x = 640,601,495,634.28/898,526.76
  6. Step 6: Final answer
    x = 712,946.49

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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.