Home / 710,511.20-1,065,766.80-619,272.80

Finding the Fourth Proportional to 710,511.20, 1,065,766.80 and 619,272.80

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Solution

The fourth proportional to 710,511.20, 1,065,766.80 and 619,272.80 is: 928,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,511.20 : 1,065,766.80 = 619,272.80 : x
  2. Step 2: Convert to fraction form
    710,511.20/1,065,766.80 = 619,272.80/x
  3. Step 3: Cross multiply
    710,511.20x = 1,065,766.80 × 619,272.80
  4. Step 4: Simplify right side
    710,511.20x = 660,000,390,383.04
  5. Step 5: Solve for x
    x = 660,000,390,383.04/710,511.20
  6. Step 6: Final answer
    x = 928,909.20

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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.