Home / 732,139.17-1,010,362.80-421,870.71

Finding the Fourth Proportional to 732,139.17, 1,010,362.80 and 421,870.71

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Solution

The fourth proportional to 732,139.17, 1,010,362.80 and 421,870.71 is: 582,187.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,139.17 : 1,010,362.80 = 421,870.71 : x
  2. Step 2: Convert to fraction form
    732,139.17/1,010,362.80 = 421,870.71/x
  3. Step 3: Cross multiply
    732,139.17x = 1,010,362.80 × 421,870.71
  4. Step 4: Simplify right side
    732,139.17x = 426,242,471,793.59
  5. Step 5: Solve for x
    x = 426,242,471,793.59/732,139.17
  6. Step 6: Final answer
    x = 582,187.77

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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.