Home / 738,517.76-1,019,248.08-416,307.36

Finding the Fourth Proportional to 738,517.76, 1,019,248.08 and 416,307.36

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Solution

The fourth proportional to 738,517.76, 1,019,248.08 and 416,307.36 is: 574,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,517.76 : 1,019,248.08 = 416,307.36 : x
  2. Step 2: Convert to fraction form
    738,517.76/1,019,248.08 = 416,307.36/x
  3. Step 3: Cross multiply
    738,517.76x = 1,019,248.08 × 416,307.36
  4. Step 4: Simplify right side
    738,517.76x = 424,320,477,369.87
  5. Step 5: Solve for x
    x = 424,320,477,369.87/738,517.76
  6. Step 6: Final answer
    x = 574,556.90

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.