Home / 1,212,702.60-1,819,060.20-314,081.40

Finding the Fourth Proportional to 1,212,702.60, 1,819,060.20 and 314,081.40

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Solution

The fourth proportional to 1,212,702.60, 1,819,060.20 and 314,081.40 is: 471,123.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,702.60 : 1,819,060.20 = 314,081.40 : x
  2. Step 2: Convert to fraction form
    1,212,702.60/1,819,060.20 = 314,081.40/x
  3. Step 3: Cross multiply
    1,212,702.60x = 1,819,060.20 × 314,081.40
  4. Step 4: Simplify right side
    1,212,702.60x = 571,332,974,300.28
  5. Step 5: Solve for x
    x = 571,332,974,300.28/1,212,702.60
  6. Step 6: Final answer
    x = 471,123.73

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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.