Home / 1,220,691.51-1,684,728.60-676,948.23

Finding the Fourth Proportional to 1,220,691.51, 1,684,728.60 and 676,948.23

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Solution

The fourth proportional to 1,220,691.51, 1,684,728.60 and 676,948.23 is: 934,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,691.51 : 1,684,728.60 = 676,948.23 : x
  2. Step 2: Convert to fraction form
    1,220,691.51/1,684,728.60 = 676,948.23/x
  3. Step 3: Cross multiply
    1,220,691.51x = 1,684,728.60 × 676,948.23
  4. Step 4: Simplify right side
    1,220,691.51x = 1,140,474,043,800.38
  5. Step 5: Solve for x
    x = 1,140,474,043,800.38/1,220,691.51
  6. Step 6: Final answer
    x = 934,285.23

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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.