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Finding the Fourth Proportional to 453,916.88, 680,238 and 358,728.56

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Solution

The fourth proportional to 453,916.88, 680,238 and 358,728.56 is: 537,589.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,916.88 : 680,238 = 358,728.56 : x
  2. Step 2: Convert to fraction form
    453,916.88/680,238 = 358,728.56/x
  3. Step 3: Cross multiply
    453,916.88x = 680,238 × 358,728.56
  4. Step 4: Simplify right side
    453,916.88x = 244,020,798,197.28
  5. Step 5: Solve for x
    x = 244,020,798,197.28/453,916.88
  6. Step 6: Final answer
    x = 537,589.17

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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.