Home / 898,529.76-1,239,970.32-516,631.20

Finding the Fourth Proportional to 898,529.76, 1,239,970.32 and 516,631.20

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Solution

The fourth proportional to 898,529.76, 1,239,970.32 and 516,631.20 is: 712,950.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,529.76 : 1,239,970.32 = 516,631.20 : x
  2. Step 2: Convert to fraction form
    898,529.76/1,239,970.32 = 516,631.20/x
  3. Step 3: Cross multiply
    898,529.76x = 1,239,970.32 × 516,631.20
  4. Step 4: Simplify right side
    898,529.76x = 640,607,354,385.98
  5. Step 5: Solve for x
    x = 640,607,354,385.98/898,529.76
  6. Step 6: Final answer
    x = 712,950.63

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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.