Home / 1,121,702.52-1,679,871.46-646,948.56

Finding the Fourth Proportional to 1,121,702.52, 1,679,871.46 and 646,948.56

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Solution

The fourth proportional to 1,121,702.52, 1,679,871.46 and 646,948.56 is: 968,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,702.52 : 1,679,871.46 = 646,948.56 : x
  2. Step 2: Convert to fraction form
    1,121,702.52/1,679,871.46 = 646,948.56/x
  3. Step 3: Cross multiply
    1,121,702.52x = 1,679,871.46 × 646,948.56
  4. Step 4: Simplify right side
    1,121,702.52x = 1,086,790,422,032.10
  5. Step 5: Solve for x
    x = 1,086,790,422,032.10/1,121,702.52
  6. Step 6: Final answer
    x = 968,875.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.