Home / 739,931.60-1,109,897.40-515,982.80

Finding the Fourth Proportional to 739,931.60, 1,109,897.40 and 515,982.80

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Solution

The fourth proportional to 739,931.60, 1,109,897.40 and 515,982.80 is: 773,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,931.60 : 1,109,897.40 = 515,982.80 : x
  2. Step 2: Convert to fraction form
    739,931.60/1,109,897.40 = 515,982.80/x
  3. Step 3: Cross multiply
    739,931.60x = 1,109,897.40 × 515,982.80
  4. Step 4: Simplify right side
    739,931.60x = 572,687,968,164.72
  5. Step 5: Solve for x
    x = 572,687,968,164.72/739,931.60
  6. Step 6: Final answer
    x = 773,974.20

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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.