Home / 1,038,515.40-1,557,773.10-663,424.20

Finding the Fourth Proportional to 1,038,515.40, 1,557,773.10 and 663,424.20

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Solution

The fourth proportional to 1,038,515.40, 1,557,773.10 and 663,424.20 is: 995,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,515.40 : 1,557,773.10 = 663,424.20 : x
  2. Step 2: Convert to fraction form
    1,038,515.40/1,557,773.10 = 663,424.20/x
  3. Step 3: Cross multiply
    1,038,515.40x = 1,557,773.10 × 663,424.20
  4. Step 4: Simplify right side
    1,038,515.40x = 1,033,464,372,649.02
  5. Step 5: Solve for x
    x = 1,033,464,372,649.02/1,038,515.40
  6. Step 6: Final answer
    x = 995,136.30

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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.