Home / 1,224,156.12-1,689,376.47-680,314.83

Finding the Fourth Proportional to 1,224,156.12, 1,689,376.47 and 680,314.83

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Solution

The fourth proportional to 1,224,156.12, 1,689,376.47 and 680,314.83 is: 938,857.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,156.12 : 1,689,376.47 = 680,314.83 : x
  2. Step 2: Convert to fraction form
    1,224,156.12/1,689,376.47 = 680,314.83/x
  3. Step 3: Cross multiply
    1,224,156.12x = 1,689,376.47 × 680,314.83
  4. Step 4: Simplify right side
    1,224,156.12x = 1,149,307,865,994.05
  5. Step 5: Solve for x
    x = 1,149,307,865,994.05/1,224,156.12
  6. Step 6: Final answer
    x = 938,857.26

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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.