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Finding the Fourth Proportional to 703,123.48, 970,309.98 and 380,833.48

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Solution

The fourth proportional to 703,123.48, 970,309.98 and 380,833.48 is: 525,549.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,123.48 : 970,309.98 = 380,833.48 : x
  2. Step 2: Convert to fraction form
    703,123.48/970,309.98 = 380,833.48/x
  3. Step 3: Cross multiply
    703,123.48x = 970,309.98 × 380,833.48
  4. Step 4: Simplify right side
    703,123.48x = 369,526,526,362.13
  5. Step 5: Solve for x
    x = 369,526,526,362.13/703,123.48
  6. Step 6: Final answer
    x = 525,549.97

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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.