Home / 1,317,279.72-1,817,822.28-744,307.56

Finding the Fourth Proportional to 1,317,279.72, 1,817,822.28 and 744,307.56

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Solution

The fourth proportional to 1,317,279.72, 1,817,822.28 and 744,307.56 is: 1,027,131.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,279.72 : 1,817,822.28 = 744,307.56 : x
  2. Step 2: Convert to fraction form
    1,317,279.72/1,817,822.28 = 744,307.56/x
  3. Step 3: Cross multiply
    1,317,279.72x = 1,817,822.28 × 744,307.56
  4. Step 4: Simplify right side
    1,317,279.72x = 1,353,018,865,740.44
  5. Step 5: Solve for x
    x = 1,353,018,865,740.44/1,317,279.72
  6. Step 6: Final answer
    x = 1,027,131.02

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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.