Home / 731,496.12-1,009,622.61-445,108.38

Finding the Fourth Proportional to 731,496.12, 1,009,622.61 and 445,108.38

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Solution

The fourth proportional to 731,496.12, 1,009,622.61 and 445,108.38 is: 614,345.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,496.12 : 1,009,622.61 = 445,108.38 : x
  2. Step 2: Convert to fraction form
    731,496.12/1,009,622.61 = 445,108.38/x
  3. Step 3: Cross multiply
    731,496.12x = 1,009,622.61 × 445,108.38
  4. Step 4: Simplify right side
    731,496.12x = 449,391,484,348.47
  5. Step 5: Solve for x
    x = 449,391,484,348.47/731,496.12
  6. Step 6: Final answer
    x = 614,345.68

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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.