Home / 710,660.40-1,065,990.60-472,714.80

Finding the Fourth Proportional to 710,660.40, 1,065,990.60 and 472,714.80

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Solution

The fourth proportional to 710,660.40, 1,065,990.60 and 472,714.80 is: 709,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,660.40 : 1,065,990.60 = 472,714.80 : x
  2. Step 2: Convert to fraction form
    710,660.40/1,065,990.60 = 472,714.80/x
  3. Step 3: Cross multiply
    710,660.40x = 1,065,990.60 × 472,714.80
  4. Step 4: Simplify right side
    710,660.40x = 503,909,533,280.88
  5. Step 5: Solve for x
    x = 503,909,533,280.88/710,660.40
  6. Step 6: Final answer
    x = 709,072.20

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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.