Home / 761,423.49-1,050,766.02-421,891.74

Finding the Fourth Proportional to 761,423.49, 1,050,766.02 and 421,891.74

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Solution

The fourth proportional to 761,423.49, 1,050,766.02 and 421,891.74 is: 582,211.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,423.49 : 1,050,766.02 = 421,891.74 : x
  2. Step 2: Convert to fraction form
    761,423.49/1,050,766.02 = 421,891.74/x
  3. Step 3: Cross multiply
    761,423.49x = 1,050,766.02 × 421,891.74
  4. Step 4: Simplify right side
    761,423.49x = 443,309,504,510.68
  5. Step 5: Solve for x
    x = 443,309,504,510.68/761,423.49
  6. Step 6: Final answer
    x = 582,211.49

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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.