Home / 1,277,953.92-1,916,930.88-391,374.72

Finding the Fourth Proportional to 1,277,953.92, 1,916,930.88 and 391,374.72

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Solution

The fourth proportional to 1,277,953.92, 1,916,930.88 and 391,374.72 is: 587,062.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,953.92 : 1,916,930.88 = 391,374.72 : x
  2. Step 2: Convert to fraction form
    1,277,953.92/1,916,930.88 = 391,374.72/x
  3. Step 3: Cross multiply
    1,277,953.92x = 1,916,930.88 × 391,374.72
  4. Step 4: Simplify right side
    1,277,953.92x = 750,238,286,419.35
  5. Step 5: Solve for x
    x = 750,238,286,419.35/1,277,953.92
  6. Step 6: Final answer
    x = 587,062.08

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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.