Home / 869,113.90-1,303,670.85-587,104.30

Finding the Fourth Proportional to 869,113.90, 1,303,670.85 and 587,104.30

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Solution

The fourth proportional to 869,113.90, 1,303,670.85 and 587,104.30 is: 880,656.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,113.90 : 1,303,670.85 = 587,104.30 : x
  2. Step 2: Convert to fraction form
    869,113.90/1,303,670.85 = 587,104.30/x
  3. Step 3: Cross multiply
    869,113.90x = 1,303,670.85 × 587,104.30
  4. Step 4: Simplify right side
    869,113.90x = 765,390,761,819.66
  5. Step 5: Solve for x
    x = 765,390,761,819.66/869,113.90
  6. Step 6: Final answer
    x = 880,656.45

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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.