Home / 761,510.92-1,050,882.24-421,978.90

Finding the Fourth Proportional to 761,510.92, 1,050,882.24 and 421,978.90

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Solution

The fourth proportional to 761,510.92, 1,050,882.24 and 421,978.90 is: 582,329.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,510.92 : 1,050,882.24 = 421,978.90 : x
  2. Step 2: Convert to fraction form
    761,510.92/1,050,882.24 = 421,978.90/x
  3. Step 3: Cross multiply
    761,510.92x = 1,050,882.24 × 421,978.90
  4. Step 4: Simplify right side
    761,510.92x = 443,450,131,664.74
  5. Step 5: Solve for x
    x = 443,450,131,664.74/761,510.92
  6. Step 6: Final answer
    x = 582,329.31

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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.