Home / 747,121.20-1,119,369.60-613,276.80

Finding the Fourth Proportional to 747,121.20, 1,119,369.60 and 613,276.80

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Solution

The fourth proportional to 747,121.20, 1,119,369.60 and 613,276.80 is: 918,838.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,121.20 : 1,119,369.60 = 613,276.80 : x
  2. Step 2: Convert to fraction form
    747,121.20/1,119,369.60 = 613,276.80/x
  3. Step 3: Cross multiply
    747,121.20x = 1,119,369.60 × 613,276.80
  4. Step 4: Simplify right side
    747,121.20x = 686,483,406,305.28
  5. Step 5: Solve for x
    x = 686,483,406,305.28/747,121.20
  6. Step 6: Final answer
    x = 918,838.08

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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.