Home / 1,276,939.08-1,915,408.62-435,498.12

Finding the Fourth Proportional to 1,276,939.08, 1,915,408.62 and 435,498.12

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Solution

The fourth proportional to 1,276,939.08, 1,915,408.62 and 435,498.12 is: 653,247.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,939.08 : 1,915,408.62 = 435,498.12 : x
  2. Step 2: Convert to fraction form
    1,276,939.08/1,915,408.62 = 435,498.12/x
  3. Step 3: Cross multiply
    1,276,939.08x = 1,915,408.62 × 435,498.12
  4. Step 4: Simplify right side
    1,276,939.08x = 834,156,853,041.79
  5. Step 5: Solve for x
    x = 834,156,853,041.79/1,276,939.08
  6. Step 6: Final answer
    x = 653,247.18

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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.