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Finding the Fourth Proportional to 587,651.61, 881,477.34 and 387,925.20

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Solution

The fourth proportional to 587,651.61, 881,477.34 and 387,925.20 is: 581,887.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,651.61 : 881,477.34 = 387,925.20 : x
  2. Step 2: Convert to fraction form
    587,651.61/881,477.34 = 387,925.20/x
  3. Step 3: Cross multiply
    587,651.61x = 881,477.34 × 387,925.20
  4. Step 4: Simplify right side
    587,651.61x = 341,947,271,960.25
  5. Step 5: Solve for x
    x = 341,947,271,960.25/587,651.61
  6. Step 6: Final answer
    x = 581,887.75

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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.