Home / 868,005.14-1,300,766.99-488,128.50

Finding the Fourth Proportional to 868,005.14, 1,300,766.99 and 488,128.50

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Solution

The fourth proportional to 868,005.14, 1,300,766.99 and 488,128.50 is: 731,495.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,005.14 : 1,300,766.99 = 488,128.50 : x
  2. Step 2: Convert to fraction form
    868,005.14/1,300,766.99 = 488,128.50/x
  3. Step 3: Cross multiply
    868,005.14x = 1,300,766.99 × 488,128.50
  4. Step 4: Simplify right side
    868,005.14x = 634,941,437,237.57
  5. Step 5: Solve for x
    x = 634,941,437,237.57/868,005.14
  6. Step 6: Final answer
    x = 731,495.02

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Similar ratio
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1.5x scale

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.