Home / 688,588.80-1,032,883.92-215,276.64

Finding the Fourth Proportional to 688,588.80, 1,032,883.92 and 215,276.64

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Solution

The fourth proportional to 688,588.80, 1,032,883.92 and 215,276.64 is: 322,915.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,588.80 : 1,032,883.92 = 215,276.64 : x
  2. Step 2: Convert to fraction form
    688,588.80/1,032,883.92 = 215,276.64/x
  3. Step 3: Cross multiply
    688,588.80x = 1,032,883.92 × 215,276.64
  4. Step 4: Simplify right side
    688,588.80x = 222,355,779,807.63
  5. Step 5: Solve for x
    x = 222,355,779,807.63/688,588.80
  6. Step 6: Final answer
    x = 322,915.19

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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.