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Finding the Fourth Proportional to 462,340.05, 637,849.04 and 290,157.54

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Solution

The fourth proportional to 462,340.05, 637,849.04 and 290,157.54 is: 400,304.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,340.05 : 637,849.04 = 290,157.54 : x
  2. Step 2: Convert to fraction form
    462,340.05/637,849.04 = 290,157.54/x
  3. Step 3: Cross multiply
    462,340.05x = 637,849.04 × 290,157.54
  4. Step 4: Simplify right side
    462,340.05x = 185,076,708,337.76
  5. Step 5: Solve for x
    x = 185,076,708,337.76/462,340.05
  6. Step 6: Final answer
    x = 400,304.30

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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.