Home / 1,385,135.10-2,077,702.65-438,579.90

Finding the Fourth Proportional to 1,385,135.10, 2,077,702.65 and 438,579.90

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Solution

The fourth proportional to 1,385,135.10, 2,077,702.65 and 438,579.90 is: 657,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,135.10 : 2,077,702.65 = 438,579.90 : x
  2. Step 2: Convert to fraction form
    1,385,135.10/2,077,702.65 = 438,579.90/x
  3. Step 3: Cross multiply
    1,385,135.10x = 2,077,702.65 × 438,579.90
  4. Step 4: Simplify right side
    1,385,135.10x = 911,238,620,466.74
  5. Step 5: Solve for x
    x = 911,238,620,466.74/1,385,135.10
  6. Step 6: Final answer
    x = 657,869.85

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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.