Home / 747,085.20-1,030,976.26-407,553.45

Finding the Fourth Proportional to 747,085.20, 1,030,976.26 and 407,553.45

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Solution

The fourth proportional to 747,085.20, 1,030,976.26 and 407,553.45 is: 562,423.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,085.20 : 1,030,976.26 = 407,553.45 : x
  2. Step 2: Convert to fraction form
    747,085.20/1,030,976.26 = 407,553.45/x
  3. Step 3: Cross multiply
    747,085.20x = 1,030,976.26 × 407,553.45
  4. Step 4: Simplify right side
    747,085.20x = 420,177,931,631.10
  5. Step 5: Solve for x
    x = 420,177,931,631.10/747,085.20
  6. Step 6: Final answer
    x = 562,423.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.