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Finding the Fourth Proportional to 608,248.80, 912,891.60 and 271,807.20

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Solution

The fourth proportional to 608,248.80, 912,891.60 and 271,807.20 is: 407,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,248.80 : 912,891.60 = 271,807.20 : x
  2. Step 2: Convert to fraction form
    608,248.80/912,891.60 = 271,807.20/x
  3. Step 3: Cross multiply
    608,248.80x = 912,891.60 × 271,807.20
  4. Step 4: Simplify right side
    608,248.80x = 248,130,509,699.52
  5. Step 5: Solve for x
    x = 248,130,509,699.52/608,248.80
  6. Step 6: Final answer
    x = 407,942.46

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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.