Home / 761,490.84-1,050,863.58-421,964.76

Finding the Fourth Proportional to 761,490.84, 1,050,863.58 and 421,964.76

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Solution

The fourth proportional to 761,490.84, 1,050,863.58 and 421,964.76 is: 582,314.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,490.84 : 1,050,863.58 = 421,964.76 : x
  2. Step 2: Convert to fraction form
    761,490.84/1,050,863.58 = 421,964.76/x
  3. Step 3: Cross multiply
    761,490.84x = 1,050,863.58 × 421,964.76
  4. Step 4: Simplify right side
    761,490.84x = 443,427,398,327.44
  5. Step 5: Solve for x
    x = 443,427,398,327.44/761,490.84
  6. Step 6: Final answer
    x = 582,314.82

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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.