Home / 506,187.31-698,677.10-315,087.25

Finding the Fourth Proportional to 506,187.31, 698,677.10 and 315,087.25

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Solution

The fourth proportional to 506,187.31, 698,677.10 and 315,087.25 is: 434,906.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,187.31 : 698,677.10 = 315,087.25 : x
  2. Step 2: Convert to fraction form
    506,187.31/698,677.10 = 315,087.25/x
  3. Step 3: Cross multiply
    506,187.31x = 698,677.10 × 315,087.25
  4. Step 4: Simplify right side
    506,187.31x = 220,144,246,076.98
  5. Step 5: Solve for x
    x = 220,144,246,076.98/506,187.31
  6. Step 6: Final answer
    x = 434,906.69

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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.