Home / 1,377,118.90-2,065,676.74-478,560.72

Finding the Fourth Proportional to 1,377,118.90, 2,065,676.74 and 478,560.72

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Solution

The fourth proportional to 1,377,118.90, 2,065,676.74 and 478,560.72 is: 717,840.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,118.90 : 2,065,676.74 = 478,560.72 : x
  2. Step 2: Convert to fraction form
    1,377,118.90/2,065,676.74 = 478,560.72/x
  3. Step 3: Cross multiply
    1,377,118.90x = 2,065,676.74 × 478,560.72
  4. Step 4: Simplify right side
    1,377,118.90x = 988,551,747,981.65
  5. Step 5: Solve for x
    x = 988,551,747,981.65/1,377,118.90
  6. Step 6: Final answer
    x = 717,840.52

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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.