Home / 847,882.60-1,271,823.90-342,685.60

Finding the Fourth Proportional to 847,882.60, 1,271,823.90 and 342,685.60

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Solution

The fourth proportional to 847,882.60, 1,271,823.90 and 342,685.60 is: 514,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,882.60 : 1,271,823.90 = 342,685.60 : x
  2. Step 2: Convert to fraction form
    847,882.60/1,271,823.90 = 342,685.60/x
  3. Step 3: Cross multiply
    847,882.60x = 1,271,823.90 × 342,685.60
  4. Step 4: Simplify right side
    847,882.60x = 435,835,736,265.84
  5. Step 5: Solve for x
    x = 435,835,736,265.84/847,882.60
  6. Step 6: Final answer
    x = 514,028.40

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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.