Home / 747,792.11-1,031,947.84-408,260.36

Finding the Fourth Proportional to 747,792.11, 1,031,947.84 and 408,260.36

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Solution

The fourth proportional to 747,792.11, 1,031,947.84 and 408,260.36 is: 563,396.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,792.11 : 1,031,947.84 = 408,260.36 : x
  2. Step 2: Convert to fraction form
    747,792.11/1,031,947.84 = 408,260.36/x
  3. Step 3: Cross multiply
    747,792.11x = 1,031,947.84 × 408,260.36
  4. Step 4: Simplify right side
    747,792.11x = 421,303,390,479.23
  5. Step 5: Solve for x
    x = 421,303,390,479.23/747,792.11
  6. Step 6: Final answer
    x = 563,396.41

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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.