Home / 1,276,988.56-1,915,427.45-317,423.86

Finding the Fourth Proportional to 1,276,988.56, 1,915,427.45 and 317,423.86

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Solution

The fourth proportional to 1,276,988.56, 1,915,427.45 and 317,423.86 is: 476,122.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,988.56 : 1,915,427.45 = 317,423.86 : x
  2. Step 2: Convert to fraction form
    1,276,988.56/1,915,427.45 = 317,423.86/x
  3. Step 3: Cross multiply
    1,276,988.56x = 1,915,427.45 × 317,423.86
  4. Step 4: Simplify right side
    1,276,988.56x = 608,002,370,733.95
  5. Step 5: Solve for x
    x = 608,002,370,733.95/1,276,988.56
  6. Step 6: Final answer
    x = 476,122.02

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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.