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Finding the Fourth Proportional to 719,341.29, 992,691.07 and 397,051.47

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Solution

The fourth proportional to 719,341.29, 992,691.07 and 397,051.47 is: 547,931.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,341.29 : 992,691.07 = 397,051.47 : x
  2. Step 2: Convert to fraction form
    719,341.29/992,691.07 = 397,051.47/x
  3. Step 3: Cross multiply
    719,341.29x = 992,691.07 × 397,051.47
  4. Step 4: Simplify right side
    719,341.29x = 394,149,448,599.37
  5. Step 5: Solve for x
    x = 394,149,448,599.37/719,341.29
  6. Step 6: Final answer
    x = 547,931.08

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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.