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Finding the Fourth Proportional to 581,470.40, 872,205.60 and 382,404.80

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Solution

The fourth proportional to 581,470.40, 872,205.60 and 382,404.80 is: 573,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,470.40 : 872,205.60 = 382,404.80 : x
  2. Step 2: Convert to fraction form
    581,470.40/872,205.60 = 382,404.80/x
  3. Step 3: Cross multiply
    581,470.40x = 872,205.60 × 382,404.80
  4. Step 4: Simplify right side
    581,470.40x = 333,535,608,026.88
  5. Step 5: Solve for x
    x = 333,535,608,026.88/581,470.40
  6. Step 6: Final answer
    x = 573,607.20

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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.