Home / 679,707.17-1,019,560.70-323,641.70

Finding the Fourth Proportional to 679,707.17, 1,019,560.70 and 323,641.70

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Solution

The fourth proportional to 679,707.17, 1,019,560.70 and 323,641.70 is: 485,462.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,707.17 : 1,019,560.70 = 323,641.70 : x
  2. Step 2: Convert to fraction form
    679,707.17/1,019,560.70 = 323,641.70/x
  3. Step 3: Cross multiply
    679,707.17x = 1,019,560.70 × 323,641.70
  4. Step 4: Simplify right side
    679,707.17x = 329,972,357,735.84
  5. Step 5: Solve for x
    x = 329,972,357,735.84/679,707.17
  6. Step 6: Final answer
    x = 485,462.52

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.