Home / 784,880.10-1,177,320.15-727,143.30

Finding the Fourth Proportional to 784,880.10, 1,177,320.15 and 727,143.30

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Solution

The fourth proportional to 784,880.10, 1,177,320.15 and 727,143.30 is: 1,090,714.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,880.10 : 1,177,320.15 = 727,143.30 : x
  2. Step 2: Convert to fraction form
    784,880.10/1,177,320.15 = 727,143.30/x
  3. Step 3: Cross multiply
    784,880.10x = 1,177,320.15 × 727,143.30
  4. Step 4: Simplify right side
    784,880.10x = 856,080,459,027.50
  5. Step 5: Solve for x
    x = 856,080,459,027.50/784,880.10
  6. Step 6: Final answer
    x = 1,090,714.95

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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.