Home / 1,224,211.52-1,689,415.38-680,345.63

Finding the Fourth Proportional to 1,224,211.52, 1,689,415.38 and 680,345.63

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Solution

The fourth proportional to 1,224,211.52, 1,689,415.38 and 680,345.63 is: 938,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,211.52 : 1,689,415.38 = 680,345.63 : x
  2. Step 2: Convert to fraction form
    1,224,211.52/1,689,415.38 = 680,345.63/x
  3. Step 3: Cross multiply
    1,224,211.52x = 1,689,415.38 × 680,345.63
  4. Step 4: Simplify right side
    1,224,211.52x = 1,149,386,368,926.02
  5. Step 5: Solve for x
    x = 1,149,386,368,926.02/1,224,211.52
  6. Step 6: Final answer
    x = 938,878.90

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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.