Home / 1,220,527.76-1,684,428.09-676,834.08

Finding the Fourth Proportional to 1,220,527.76, 1,684,428.09 and 676,834.08

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Solution

The fourth proportional to 1,220,527.76, 1,684,428.09 and 676,834.08 is: 934,086.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,527.76 : 1,684,428.09 = 676,834.08 : x
  2. Step 2: Convert to fraction form
    1,220,527.76/1,684,428.09 = 676,834.08/x
  3. Step 3: Cross multiply
    1,220,527.76x = 1,684,428.09 × 676,834.08
  4. Step 4: Simplify right side
    1,220,527.76x = 1,140,078,336,621.31
  5. Step 5: Solve for x
    x = 1,140,078,336,621.31/1,220,527.76
  6. Step 6: Final answer
    x = 934,086.36

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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.