Home / 1,247,892.35-1,872,045.45-438,066.76

Finding the Fourth Proportional to 1,247,892.35, 1,872,045.45 and 438,066.76

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Solution

The fourth proportional to 1,247,892.35, 1,872,045.45 and 438,066.76 is: 657,172.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,892.35 : 1,872,045.45 = 438,066.76 : x
  2. Step 2: Convert to fraction form
    1,247,892.35/1,872,045.45 = 438,066.76/x
  3. Step 3: Cross multiply
    1,247,892.35x = 1,872,045.45 × 438,066.76
  4. Step 4: Simplify right side
    1,247,892.35x = 820,080,884,854.24
  5. Step 5: Solve for x
    x = 820,080,884,854.24/1,247,892.35
  6. Step 6: Final answer
    x = 657,172.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.