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Finding the Fourth Proportional to 719,537.16, 992,962.76 and 397,247.88

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Solution

The fourth proportional to 719,537.16, 992,962.76 and 397,247.88 is: 548,202.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,537.16 : 992,962.76 = 397,247.88 : x
  2. Step 2: Convert to fraction form
    719,537.16/992,962.76 = 397,247.88/x
  3. Step 3: Cross multiply
    719,537.16x = 992,962.76 × 397,247.88
  4. Step 4: Simplify right side
    719,537.16x = 394,452,349,342.71
  5. Step 5: Solve for x
    x = 394,452,349,342.71/719,537.16
  6. Step 6: Final answer
    x = 548,202.89

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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.