Home / 1,224,211.40-1,689,415.21-680,345.52

Finding the Fourth Proportional to 1,224,211.40, 1,689,415.21 and 680,345.52

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Solution

The fourth proportional to 1,224,211.40, 1,689,415.21 and 680,345.52 is: 938,878.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,211.40 : 1,689,415.21 = 680,345.52 : x
  2. Step 2: Convert to fraction form
    1,224,211.40/1,689,415.21 = 680,345.52/x
  3. Step 3: Cross multiply
    1,224,211.40x = 1,689,415.21 × 680,345.52
  4. Step 4: Simplify right side
    1,224,211.40x = 1,149,386,069,543.36
  5. Step 5: Solve for x
    x = 1,149,386,069,543.36/1,224,211.40
  6. Step 6: Final answer
    x = 938,878.75

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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.