Home / 520,278.24-779,881.68-204,607.20

Finding the Fourth Proportional to 520,278.24, 779,881.68 and 204,607.20

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Solution

The fourth proportional to 520,278.24, 779,881.68 and 204,607.20 is: 306,700.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,278.24 : 779,881.68 = 204,607.20 : x
  2. Step 2: Convert to fraction form
    520,278.24/779,881.68 = 204,607.20/x
  3. Step 3: Cross multiply
    520,278.24x = 779,881.68 × 204,607.20
  4. Step 4: Simplify right side
    520,278.24x = 159,569,406,876.10
  5. Step 5: Solve for x
    x = 159,569,406,876.10/520,278.24
  6. Step 6: Final answer
    x = 306,700.14

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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.