Home / 571,123.57-856,463.92-304,738.78

Finding the Fourth Proportional to 571,123.57, 856,463.92 and 304,738.78

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Solution

The fourth proportional to 571,123.57, 856,463.92 and 304,738.78 is: 456,990.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,123.57 : 856,463.92 = 304,738.78 : x
  2. Step 2: Convert to fraction form
    571,123.57/856,463.92 = 304,738.78/x
  3. Step 3: Cross multiply
    571,123.57x = 856,463.92 × 304,738.78
  4. Step 4: Simplify right side
    571,123.57x = 260,997,767,191.81
  5. Step 5: Solve for x
    x = 260,997,767,191.81/571,123.57
  6. Step 6: Final answer
    x = 456,990.01

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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.