Home / 1,287,232.40-1,930,265.40-488,248.40

Finding the Fourth Proportional to 1,287,232.40, 1,930,265.40 and 488,248.40

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Solution

The fourth proportional to 1,287,232.40, 1,930,265.40 and 488,248.40 is: 732,151.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,232.40 : 1,930,265.40 = 488,248.40 : x
  2. Step 2: Convert to fraction form
    1,287,232.40/1,930,265.40 = 488,248.40/x
  3. Step 3: Cross multiply
    1,287,232.40x = 1,930,265.40 × 488,248.40
  4. Step 4: Simplify right side
    1,287,232.40x = 942,448,993,125.36
  5. Step 5: Solve for x
    x = 942,448,993,125.36/1,287,232.40
  6. Step 6: Final answer
    x = 732,151.39

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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.