Home / 887,266.90-1,330,900.35-438,057.10

Finding the Fourth Proportional to 887,266.90, 1,330,900.35 and 438,057.10

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Solution

The fourth proportional to 887,266.90, 1,330,900.35 and 438,057.10 is: 657,085.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,266.90 : 1,330,900.35 = 438,057.10 : x
  2. Step 2: Convert to fraction form
    887,266.90/1,330,900.35 = 438,057.10/x
  3. Step 3: Cross multiply
    887,266.90x = 1,330,900.35 × 438,057.10
  4. Step 4: Simplify right side
    887,266.90x = 583,010,347,709.99
  5. Step 5: Solve for x
    x = 583,010,347,709.99/887,266.90
  6. Step 6: Final answer
    x = 657,085.65

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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.