Home / 1,385,270.10-2,077,905.15-438,714.90

Finding the Fourth Proportional to 1,385,270.10, 2,077,905.15 and 438,714.90

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Solution

The fourth proportional to 1,385,270.10, 2,077,905.15 and 438,714.90 is: 658,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,270.10 : 2,077,905.15 = 438,714.90 : x
  2. Step 2: Convert to fraction form
    1,385,270.10/2,077,905.15 = 438,714.90/x
  3. Step 3: Cross multiply
    1,385,270.10x = 2,077,905.15 × 438,714.90
  4. Step 4: Simplify right side
    1,385,270.10x = 911,607,950,091.74
  5. Step 5: Solve for x
    x = 911,607,950,091.74/1,385,270.10
  6. Step 6: Final answer
    x = 658,072.35

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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.