Home / 1,224,047.34-1,689,126.75-680,219.82

Finding the Fourth Proportional to 1,224,047.34, 1,689,126.75 and 680,219.82

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Solution

The fourth proportional to 1,224,047.34, 1,689,126.75 and 680,219.82 is: 938,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,047.34 : 1,689,126.75 = 680,219.82 : x
  2. Step 2: Convert to fraction form
    1,224,047.34/1,689,126.75 = 680,219.82/x
  3. Step 3: Cross multiply
    1,224,047.34x = 1,689,126.75 × 680,219.82
  4. Step 4: Simplify right side
    1,224,047.34x = 1,148,977,493,842.18
  5. Step 5: Solve for x
    x = 1,148,977,493,842.18/1,224,047.34
  6. Step 6: Final answer
    x = 938,670.80

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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.