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Finding the Fourth Proportional to 472,974.89, 652,719.11 and 258,128.87

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Solution

The fourth proportional to 472,974.89, 652,719.11 and 258,128.87 is: 356,225.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,974.89 : 652,719.11 = 258,128.87 : x
  2. Step 2: Convert to fraction form
    472,974.89/652,719.11 = 258,128.87/x
  3. Step 3: Cross multiply
    472,974.89x = 652,719.11 × 258,128.87
  4. Step 4: Simplify right side
    472,974.89x = 168,485,641,737.47
  5. Step 5: Solve for x
    x = 168,485,641,737.47/472,974.89
  6. Step 6: Final answer
    x = 356,225.35

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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.