Home / 747,287.70-1,121,529.32-392,510.94

Finding the Fourth Proportional to 747,287.70, 1,121,529.32 and 392,510.94

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Solution

The fourth proportional to 747,287.70, 1,121,529.32 and 392,510.94 is: 589,080.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,287.70 : 1,121,529.32 = 392,510.94 : x
  2. Step 2: Convert to fraction form
    747,287.70/1,121,529.32 = 392,510.94/x
  3. Step 3: Cross multiply
    747,287.70x = 1,121,529.32 × 392,510.94
  4. Step 4: Simplify right side
    747,287.70x = 440,212,527,630.76
  5. Step 5: Solve for x
    x = 440,212,527,630.76/747,287.70
  6. Step 6: Final answer
    x = 589,080.39

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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.