Home / 1,386,641.70-2,079,962.55-488,076.30

Finding the Fourth Proportional to 1,386,641.70, 2,079,962.55 and 488,076.30

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Solution

The fourth proportional to 1,386,641.70, 2,079,962.55 and 488,076.30 is: 732,114.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,641.70 : 2,079,962.55 = 488,076.30 : x
  2. Step 2: Convert to fraction form
    1,386,641.70/2,079,962.55 = 488,076.30/x
  3. Step 3: Cross multiply
    1,386,641.70x = 2,079,962.55 × 488,076.30
  4. Step 4: Simplify right side
    1,386,641.70x = 1,015,180,425,542.57
  5. Step 5: Solve for x
    x = 1,015,180,425,542.57/1,386,641.70
  6. Step 6: Final answer
    x = 732,114.45

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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.