Home / 1,218,276.76-1,681,235.22-674,421.64

Finding the Fourth Proportional to 1,218,276.76, 1,681,235.22 and 674,421.64

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Solution

The fourth proportional to 1,218,276.76, 1,681,235.22 and 674,421.64 is: 930,709.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,276.76 : 1,681,235.22 = 674,421.64 : x
  2. Step 2: Convert to fraction form
    1,218,276.76/1,681,235.22 = 674,421.64/x
  3. Step 3: Cross multiply
    1,218,276.76x = 1,681,235.22 × 674,421.64
  4. Step 4: Simplify right side
    1,218,276.76x = 1,133,861,414,298.16
  5. Step 5: Solve for x
    x = 1,133,861,414,298.16/1,218,276.76
  6. Step 6: Final answer
    x = 930,709.22

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.