Home / 1,291,827.29-1,780,873.70-908,664.89

Finding the Fourth Proportional to 1,291,827.29, 1,780,873.70 and 908,664.89

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Solution

The fourth proportional to 1,291,827.29, 1,780,873.70 and 908,664.89 is: 1,252,657.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,827.29 : 1,780,873.70 = 908,664.89 : x
  2. Step 2: Convert to fraction form
    1,291,827.29/1,780,873.70 = 908,664.89/x
  3. Step 3: Cross multiply
    1,291,827.29x = 1,780,873.70 × 908,664.89
  4. Step 4: Simplify right side
    1,291,827.29x = 1,618,217,391,266.70
  5. Step 5: Solve for x
    x = 1,618,217,391,266.70/1,291,827.29
  6. Step 6: Final answer
    x = 1,252,657.70

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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.