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Finding the Fourth Proportional to 888,978.84, 1,226,812.40 and 507,041.16

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Solution

The fourth proportional to 888,978.84, 1,226,812.40 and 507,041.16 is: 699,729.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,978.84 : 1,226,812.40 = 507,041.16 : x
  2. Step 2: Convert to fraction form
    888,978.84/1,226,812.40 = 507,041.16/x
  3. Step 3: Cross multiply
    888,978.84x = 1,226,812.40 × 507,041.16
  4. Step 4: Simplify right side
    888,978.84x = 622,044,382,398.38
  5. Step 5: Solve for x
    x = 622,044,382,398.38/888,978.84
  6. Step 6: Final answer
    x = 699,729.12

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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.