Home / 815,744.30-1,125,728.34-453,158.30

Finding the Fourth Proportional to 815,744.30, 1,125,728.34 and 453,158.30

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Solution

The fourth proportional to 815,744.30, 1,125,728.34 and 453,158.30 is: 625,359.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,744.30 : 1,125,728.34 = 453,158.30 : x
  2. Step 2: Convert to fraction form
    815,744.30/1,125,728.34 = 453,158.30/x
  3. Step 3: Cross multiply
    815,744.30x = 1,125,728.34 × 453,158.30
  4. Step 4: Simplify right side
    815,744.30x = 510,133,140,816.22
  5. Step 5: Solve for x
    x = 510,133,140,816.22/815,744.30
  6. Step 6: Final answer
    x = 625,359.12

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Double scale
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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.