Home / 724,905.60-1,086,289.20-525,645.60

Finding the Fourth Proportional to 724,905.60, 1,086,289.20 and 525,645.60

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Solution

The fourth proportional to 724,905.60, 1,086,289.20 and 525,645.60 is: 787,693.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,905.60 : 1,086,289.20 = 525,645.60 : x
  2. Step 2: Convert to fraction form
    724,905.60/1,086,289.20 = 525,645.60/x
  3. Step 3: Cross multiply
    724,905.60x = 1,086,289.20 × 525,645.60
  4. Step 4: Simplify right side
    724,905.60x = 571,003,138,307.52
  5. Step 5: Solve for x
    x = 571,003,138,307.52/724,905.60
  6. Step 6: Final answer
    x = 787,693.10

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1.5x scale

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.