Home / 739,938.60-1,109,907.90-515,989.80

Finding the Fourth Proportional to 739,938.60, 1,109,907.90 and 515,989.80

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Solution

The fourth proportional to 739,938.60, 1,109,907.90 and 515,989.80 is: 773,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,938.60 : 1,109,907.90 = 515,989.80 : x
  2. Step 2: Convert to fraction form
    739,938.60/1,109,907.90 = 515,989.80/x
  3. Step 3: Cross multiply
    739,938.60x = 1,109,907.90 × 515,989.80
  4. Step 4: Simplify right side
    739,938.60x = 572,701,155,339.42
  5. Step 5: Solve for x
    x = 572,701,155,339.42/739,938.60
  6. Step 6: Final answer
    x = 773,984.70

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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.