Home / 1,266,416.80-1,899,625.20-424,765.60

Finding the Fourth Proportional to 1,266,416.80, 1,899,625.20 and 424,765.60

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Solution

The fourth proportional to 1,266,416.80, 1,899,625.20 and 424,765.60 is: 637,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,416.80 : 1,899,625.20 = 424,765.60 : x
  2. Step 2: Convert to fraction form
    1,266,416.80/1,899,625.20 = 424,765.60/x
  3. Step 3: Cross multiply
    1,266,416.80x = 1,899,625.20 × 424,765.60
  4. Step 4: Simplify right side
    1,266,416.80x = 806,895,437,853.12
  5. Step 5: Solve for x
    x = 806,895,437,853.12/1,266,416.80
  6. Step 6: Final answer
    x = 637,148.40

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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.