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Finding the Fourth Proportional to 886,280.80, 1,329,615.60 and 437,216.80

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Solution

The fourth proportional to 886,280.80, 1,329,615.60 and 437,216.80 is: 655,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,280.80 : 1,329,615.60 = 437,216.80 : x
  2. Step 2: Convert to fraction form
    886,280.80/1,329,615.60 = 437,216.80/x
  3. Step 3: Cross multiply
    886,280.80x = 1,329,615.60 × 437,216.80
  4. Step 4: Simplify right side
    886,280.80x = 581,330,277,862.08
  5. Step 5: Solve for x
    x = 581,330,277,862.08/886,280.80
  6. Step 6: Final answer
    x = 655,921.10

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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.