Home / 439,355.08-658,280.40-239,815.54

Finding the Fourth Proportional to 439,355.08, 658,280.40 and 239,815.54

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Solution

The fourth proportional to 439,355.08, 658,280.40 and 239,815.54 is: 359,312.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,355.08 : 658,280.40 = 239,815.54 : x
  2. Step 2: Convert to fraction form
    439,355.08/658,280.40 = 239,815.54/x
  3. Step 3: Cross multiply
    439,355.08x = 658,280.40 × 239,815.54
  4. Step 4: Simplify right side
    439,355.08x = 157,865,869,597.42
  5. Step 5: Solve for x
    x = 157,865,869,597.42/439,355.08
  6. Step 6: Final answer
    x = 359,312.72

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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.