Home / 688,136.40-1,032,204.74-214,862.31

Finding the Fourth Proportional to 688,136.40, 1,032,204.74 and 214,862.31

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Solution

The fourth proportional to 688,136.40, 1,032,204.74 and 214,862.31 is: 322,293.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,136.40 : 1,032,204.74 = 214,862.31 : x
  2. Step 2: Convert to fraction form
    688,136.40/1,032,204.74 = 214,862.31/x
  3. Step 3: Cross multiply
    688,136.40x = 1,032,204.74 × 214,862.31
  4. Step 4: Simplify right side
    688,136.40x = 221,781,893,755.04
  5. Step 5: Solve for x
    x = 221,781,893,755.04/688,136.40
  6. Step 6: Final answer
    x = 322,293.51

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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.