Home / 631,285.35-870,947.42-373,108.11

Finding the Fourth Proportional to 631,285.35, 870,947.42 and 373,108.11

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Solution

The fourth proportional to 631,285.35, 870,947.42 and 373,108.11 is: 514,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,285.35 : 870,947.42 = 373,108.11 : x
  2. Step 2: Convert to fraction form
    631,285.35/870,947.42 = 373,108.11/x
  3. Step 3: Cross multiply
    631,285.35x = 870,947.42 × 373,108.11
  4. Step 4: Simplify right side
    631,285.35x = 324,957,543,920.04
  5. Step 5: Solve for x
    x = 324,957,543,920.04/631,285.35
  6. Step 6: Final answer
    x = 514,755.40

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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.