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Finding the Fourth Proportional to 587,498.40, 881,247.60 and 521,013.60

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Solution

The fourth proportional to 587,498.40, 881,247.60 and 521,013.60 is: 781,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,498.40 : 881,247.60 = 521,013.60 : x
  2. Step 2: Convert to fraction form
    587,498.40/881,247.60 = 521,013.60/x
  3. Step 3: Cross multiply
    587,498.40x = 881,247.60 × 521,013.60
  4. Step 4: Simplify right side
    587,498.40x = 459,141,984,567.36
  5. Step 5: Solve for x
    x = 459,141,984,567.36/587,498.40
  6. Step 6: Final answer
    x = 781,520.40

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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.