Home / 1,240,658.70-1,860,003.90-679,693.20

Finding the Fourth Proportional to 1,240,658.70, 1,860,003.90 and 679,693.20

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Solution

The fourth proportional to 1,240,658.70, 1,860,003.90 and 679,693.20 is: 1,019,000.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,658.70 : 1,860,003.90 = 679,693.20 : x
  2. Step 2: Convert to fraction form
    1,240,658.70/1,860,003.90 = 679,693.20/x
  3. Step 3: Cross multiply
    1,240,658.70x = 1,860,003.90 × 679,693.20
  4. Step 4: Simplify right side
    1,240,658.70x = 1,264,232,002,803.48
  5. Step 5: Solve for x
    x = 1,264,232,002,803.48/1,240,658.70
  6. Step 6: Final answer
    x = 1,019,000.63

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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.