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Finding the Fourth Proportional to 719,335.28, 992,715.75 and 413,510.67

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Solution

The fourth proportional to 719,335.28, 992,715.75 and 413,510.67 is: 570,663.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,335.28 : 992,715.75 = 413,510.67 : x
  2. Step 2: Convert to fraction form
    719,335.28/992,715.75 = 413,510.67/x
  3. Step 3: Cross multiply
    719,335.28x = 992,715.75 × 413,510.67
  4. Step 4: Simplify right side
    719,335.28x = 410,498,554,902.05
  5. Step 5: Solve for x
    x = 410,498,554,902.05/719,335.28
  6. Step 6: Final answer
    x = 570,663.73

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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.