Home / 689,349.72-951,391.26-387,602.04

Finding the Fourth Proportional to 689,349.72, 951,391.26 and 387,602.04

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Solution

The fourth proportional to 689,349.72, 951,391.26 and 387,602.04 is: 534,940.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,349.72 : 951,391.26 = 387,602.04 : x
  2. Step 2: Convert to fraction form
    689,349.72/951,391.26 = 387,602.04/x
  3. Step 3: Cross multiply
    689,349.72x = 951,391.26 × 387,602.04
  4. Step 4: Simplify right side
    689,349.72x = 368,761,193,214.17
  5. Step 5: Solve for x
    x = 368,761,193,214.17/689,349.72
  6. Step 6: Final answer
    x = 534,940.66

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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.