Home / 1,240,740.20-1,860,672.90-442,047.80

Finding the Fourth Proportional to 1,240,740.20, 1,860,672.90 and 442,047.80

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Solution

The fourth proportional to 1,240,740.20, 1,860,672.90 and 442,047.80 is: 662,915.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,740.20 : 1,860,672.90 = 442,047.80 : x
  2. Step 2: Convert to fraction form
    1,240,740.20/1,860,672.90 = 442,047.80/x
  3. Step 3: Cross multiply
    1,240,740.20x = 1,860,672.90 × 442,047.80
  4. Step 4: Simplify right side
    1,240,740.20x = 822,506,361,964.62
  5. Step 5: Solve for x
    x = 822,506,361,964.62/1,240,740.20
  6. Step 6: Final answer
    x = 662,915.86

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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.