Home / 689,322.08-951,349.92-387,516.08

Finding the Fourth Proportional to 689,322.08, 951,349.92 and 387,516.08

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Solution

The fourth proportional to 689,322.08, 951,349.92 and 387,516.08 is: 534,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,322.08 : 951,349.92 = 387,516.08 : x
  2. Step 2: Convert to fraction form
    689,322.08/951,349.92 = 387,516.08/x
  3. Step 3: Cross multiply
    689,322.08x = 951,349.92 × 387,516.08
  4. Step 4: Simplify right side
    689,322.08x = 368,663,391,706.71
  5. Step 5: Solve for x
    x = 368,663,391,706.71/689,322.08
  6. Step 6: Final answer
    x = 534,820.23

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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.