Home / 1,237,331.20-1,854,916.80-479,689.60

Finding the Fourth Proportional to 1,237,331.20, 1,854,916.80 and 479,689.60

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Solution

The fourth proportional to 1,237,331.20, 1,854,916.80 and 479,689.60 is: 719,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,331.20 : 1,854,916.80 = 479,689.60 : x
  2. Step 2: Convert to fraction form
    1,237,331.20/1,854,916.80 = 479,689.60/x
  3. Step 3: Cross multiply
    1,237,331.20x = 1,854,916.80 × 479,689.60
  4. Step 4: Simplify right side
    1,237,331.20x = 889,784,297,825.28
  5. Step 5: Solve for x
    x = 889,784,297,825.28/1,237,331.20
  6. Step 6: Final answer
    x = 719,115.70

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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.