Home / 385,633.40-578,061.30-175,422.20

Finding the Fourth Proportional to 385,633.40, 578,061.30 and 175,422.20

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Solution

The fourth proportional to 385,633.40, 578,061.30 and 175,422.20 is: 262,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,633.40 : 578,061.30 = 175,422.20 : x
  2. Step 2: Convert to fraction form
    385,633.40/578,061.30 = 175,422.20/x
  3. Step 3: Cross multiply
    385,633.40x = 578,061.30 × 175,422.20
  4. Step 4: Simplify right side
    385,633.40x = 101,404,784,980.86
  5. Step 5: Solve for x
    x = 101,404,784,980.86/385,633.40
  6. Step 6: Final answer
    x = 262,956.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.