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Finding the Fourth Proportional to 719,350.14, 992,703.28 and 397,060.34

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Solution

The fourth proportional to 719,350.14, 992,703.28 and 397,060.34 is: 547,943.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,350.14 : 992,703.28 = 397,060.34 : x
  2. Step 2: Convert to fraction form
    719,350.14/992,703.28 = 397,060.34/x
  3. Step 3: Cross multiply
    719,350.14x = 992,703.28 × 397,060.34
  4. Step 4: Simplify right side
    719,350.14x = 394,163,101,875.92
  5. Step 5: Solve for x
    x = 394,163,101,875.92/719,350.14
  6. Step 6: Final answer
    x = 547,943.32

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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.