Home / 413,007.20-619,510.80-272,002.40

Finding the Fourth Proportional to 413,007.20, 619,510.80 and 272,002.40

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Solution

The fourth proportional to 413,007.20, 619,510.80 and 272,002.40 is: 408,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,007.20 : 619,510.80 = 272,002.40 : x
  2. Step 2: Convert to fraction form
    413,007.20/619,510.80 = 272,002.40/x
  3. Step 3: Cross multiply
    413,007.20x = 619,510.80 × 272,002.40
  4. Step 4: Simplify right side
    413,007.20x = 168,508,424,425.92
  5. Step 5: Solve for x
    x = 168,508,424,425.92/413,007.20
  6. Step 6: Final answer
    x = 408,003.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.