Home / 689,359.23-951,285.03-398,924.28

Finding the Fourth Proportional to 689,359.23, 951,285.03 and 398,924.28

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Solution

The fourth proportional to 689,359.23, 951,285.03 and 398,924.28 is: 550,497.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,359.23 : 951,285.03 = 398,924.28 : x
  2. Step 2: Convert to fraction form
    689,359.23/951,285.03 = 398,924.28/x
  3. Step 3: Cross multiply
    689,359.23x = 951,285.03 × 398,924.28
  4. Step 4: Simplify right side
    689,359.23x = 379,490,695,667.53
  5. Step 5: Solve for x
    x = 379,490,695,667.53/689,359.23
  6. Step 6: Final answer
    x = 550,497.74

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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.