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Finding the Fourth Proportional to 385,598.40, 578,008.80 and 175,387.20

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Solution

The fourth proportional to 385,598.40, 578,008.80 and 175,387.20 is: 262,903.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,598.40 : 578,008.80 = 175,387.20 : x
  2. Step 2: Convert to fraction form
    385,598.40/578,008.80 = 175,387.20/x
  3. Step 3: Cross multiply
    385,598.40x = 578,008.80 × 175,387.20
  4. Step 4: Simplify right side
    385,598.40x = 101,375,345,007.36
  5. Step 5: Solve for x
    x = 101,375,345,007.36/385,598.40
  6. Step 6: Final answer
    x = 262,903.96

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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.