Home / 689,616.23-951,646.36-379,489.83

Finding the Fourth Proportional to 689,616.23, 951,646.36 and 379,489.83

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Solution

The fourth proportional to 689,616.23, 951,646.36 and 379,489.83 is: 523,682.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,616.23 : 951,646.36 = 379,489.83 : x
  2. Step 2: Convert to fraction form
    689,616.23/951,646.36 = 379,489.83/x
  3. Step 3: Cross multiply
    689,616.23x = 951,646.36 × 379,489.83
  4. Step 4: Simplify right side
    689,616.23x = 361,140,119,066.52
  5. Step 5: Solve for x
    x = 361,140,119,066.52/689,616.23
  6. Step 6: Final answer
    x = 523,682.74

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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.