Home / 784,851.40-1,177,277.10-385,748.20

Finding the Fourth Proportional to 784,851.40, 1,177,277.10 and 385,748.20

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Solution

The fourth proportional to 784,851.40, 1,177,277.10 and 385,748.20 is: 578,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,851.40 : 1,177,277.10 = 385,748.20 : x
  2. Step 2: Convert to fraction form
    784,851.40/1,177,277.10 = 385,748.20/x
  3. Step 3: Cross multiply
    784,851.40x = 1,177,277.10 × 385,748.20
  4. Step 4: Simplify right side
    784,851.40x = 454,132,522,226.22
  5. Step 5: Solve for x
    x = 454,132,522,226.22/784,851.40
  6. Step 6: Final answer
    x = 578,622.30

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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.