Home / 849,856.20-1,274,784.30-513,276.90

Finding the Fourth Proportional to 849,856.20, 1,274,784.30 and 513,276.90

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Solution

The fourth proportional to 849,856.20, 1,274,784.30 and 513,276.90 is: 769,915.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,856.20 : 1,274,784.30 = 513,276.90 : x
  2. Step 2: Convert to fraction form
    849,856.20/1,274,784.30 = 513,276.90/x
  3. Step 3: Cross multiply
    849,856.20x = 1,274,784.30 × 513,276.90
  4. Step 4: Simplify right side
    849,856.20x = 654,317,333,672.67
  5. Step 5: Solve for x
    x = 654,317,333,672.67/849,856.20
  6. Step 6: Final answer
    x = 769,915.35

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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.