Home / 887,650.10-1,330,600.35-438,440.30

Finding the Fourth Proportional to 887,650.10, 1,330,600.35 and 438,440.30

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Solution

The fourth proportional to 887,650.10, 1,330,600.35 and 438,440.30 is: 657,228.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,650.10 : 1,330,600.35 = 438,440.30 : x
  2. Step 2: Convert to fraction form
    887,650.10/1,330,600.35 = 438,440.30/x
  3. Step 3: Cross multiply
    887,650.10x = 1,330,600.35 × 438,440.30
  4. Step 4: Simplify right side
    887,650.10x = 583,388,816,634.11
  5. Step 5: Solve for x
    x = 583,388,816,634.11/887,650.10
  6. Step 6: Final answer
    x = 657,228.36

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Double scale
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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.