Home / 674,782.80-1,012,174.20-663,118.80

Finding the Fourth Proportional to 674,782.80, 1,012,174.20 and 663,118.80

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Solution

The fourth proportional to 674,782.80, 1,012,174.20 and 663,118.80 is: 994,678.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,782.80 : 1,012,174.20 = 663,118.80 : x
  2. Step 2: Convert to fraction form
    674,782.80/1,012,174.20 = 663,118.80/x
  3. Step 3: Cross multiply
    674,782.80x = 1,012,174.20 × 663,118.80
  4. Step 4: Simplify right side
    674,782.80x = 671,191,740,894.96
  5. Step 5: Solve for x
    x = 671,191,740,894.96/674,782.80
  6. Step 6: Final answer
    x = 994,678.20

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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.