Home / 920,077.60-1,380,116.40-696,128.80

Finding the Fourth Proportional to 920,077.60, 1,380,116.40 and 696,128.80

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Solution

The fourth proportional to 920,077.60, 1,380,116.40 and 696,128.80 is: 1,044,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,077.60 : 1,380,116.40 = 696,128.80 : x
  2. Step 2: Convert to fraction form
    920,077.60/1,380,116.40 = 696,128.80/x
  3. Step 3: Cross multiply
    920,077.60x = 1,380,116.40 × 696,128.80
  4. Step 4: Simplify right side
    920,077.60x = 960,738,773,392.32
  5. Step 5: Solve for x
    x = 960,738,773,392.32/920,077.60
  6. Step 6: Final answer
    x = 1,044,193.20

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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.