Home / 698,697.60-1,048,046.40-255,638.40

Finding the Fourth Proportional to 698,697.60, 1,048,046.40 and 255,638.40

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Solution

The fourth proportional to 698,697.60, 1,048,046.40 and 255,638.40 is: 383,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,697.60 : 1,048,046.40 = 255,638.40 : x
  2. Step 2: Convert to fraction form
    698,697.60/1,048,046.40 = 255,638.40/x
  3. Step 3: Cross multiply
    698,697.60x = 1,048,046.40 × 255,638.40
  4. Step 4: Simplify right side
    698,697.60x = 267,920,904,821.76
  5. Step 5: Solve for x
    x = 267,920,904,821.76/698,697.60
  6. Step 6: Final answer
    x = 383,457.60

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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.