Home / 897,172.20-1,345,758.30-424,780.20

Finding the Fourth Proportional to 897,172.20, 1,345,758.30 and 424,780.20

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Solution

The fourth proportional to 897,172.20, 1,345,758.30 and 424,780.20 is: 637,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,172.20 : 1,345,758.30 = 424,780.20 : x
  2. Step 2: Convert to fraction form
    897,172.20/1,345,758.30 = 424,780.20/x
  3. Step 3: Cross multiply
    897,172.20x = 1,345,758.30 × 424,780.20
  4. Step 4: Simplify right side
    897,172.20x = 571,651,479,825.66
  5. Step 5: Solve for x
    x = 571,651,479,825.66/897,172.20
  6. Step 6: Final answer
    x = 637,170.30

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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.