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Finding the Fourth Proportional to 581,871.06, 872,771.13 and 278,480.88

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Solution

The fourth proportional to 581,871.06, 872,771.13 and 278,480.88 is: 417,704.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,871.06 : 872,771.13 = 278,480.88 : x
  2. Step 2: Convert to fraction form
    581,871.06/872,771.13 = 278,480.88/x
  3. Step 3: Cross multiply
    581,871.06x = 872,771.13 × 278,480.88
  4. Step 4: Simplify right side
    581,871.06x = 243,050,072,320.99
  5. Step 5: Solve for x
    x = 243,050,072,320.99/581,871.06
  6. Step 6: Final answer
    x = 417,704.35

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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.