Home / 761,505.84-1,050,884.28-421,979.76

Finding the Fourth Proportional to 761,505.84, 1,050,884.28 and 421,979.76

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Solution

The fourth proportional to 761,505.84, 1,050,884.28 and 421,979.76 is: 582,335.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,505.84 : 1,050,884.28 = 421,979.76 : x
  2. Step 2: Convert to fraction form
    761,505.84/1,050,884.28 = 421,979.76/x
  3. Step 3: Cross multiply
    761,505.84x = 1,050,884.28 × 421,979.76
  4. Step 4: Simplify right side
    761,505.84x = 443,451,896,262.17
  5. Step 5: Solve for x
    x = 443,451,896,262.17/761,505.84
  6. Step 6: Final answer
    x = 582,335.52

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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.