Home / 756,155.40-1,134,233.10-738,659.40

Finding the Fourth Proportional to 756,155.40, 1,134,233.10 and 738,659.40

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Solution

The fourth proportional to 756,155.40, 1,134,233.10 and 738,659.40 is: 1,107,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,155.40 : 1,134,233.10 = 738,659.40 : x
  2. Step 2: Convert to fraction form
    756,155.40/1,134,233.10 = 738,659.40/x
  3. Step 3: Cross multiply
    756,155.40x = 1,134,233.10 × 738,659.40
  4. Step 4: Simplify right side
    756,155.40x = 837,811,941,106.14
  5. Step 5: Solve for x
    x = 837,811,941,106.14/756,155.40
  6. Step 6: Final answer
    x = 1,107,989.10

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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.