Home / 696,056.80-1,044,085.20-660,114.40

Finding the Fourth Proportional to 696,056.80, 1,044,085.20 and 660,114.40

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Solution

The fourth proportional to 696,056.80, 1,044,085.20 and 660,114.40 is: 990,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,056.80 : 1,044,085.20 = 660,114.40 : x
  2. Step 2: Convert to fraction form
    696,056.80/1,044,085.20 = 660,114.40/x
  3. Step 3: Cross multiply
    696,056.80x = 1,044,085.20 × 660,114.40
  4. Step 4: Simplify right side
    696,056.80x = 689,215,675,346.88
  5. Step 5: Solve for x
    x = 689,215,675,346.88/696,056.80
  6. Step 6: Final answer
    x = 990,171.60

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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.