Home / 688,679.80-1,033,038.18-215,365.16

Finding the Fourth Proportional to 688,679.80, 1,033,038.18 and 215,365.16

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Solution

The fourth proportional to 688,679.80, 1,033,038.18 and 215,365.16 is: 323,053.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,679.80 : 1,033,038.18 = 215,365.16 : x
  2. Step 2: Convert to fraction form
    688,679.80/1,033,038.18 = 215,365.16/x
  3. Step 3: Cross multiply
    688,679.80x = 1,033,038.18 × 215,365.16
  4. Step 4: Simplify right side
    688,679.80x = 222,480,435,504.40
  5. Step 5: Solve for x
    x = 222,480,435,504.40/688,679.80
  6. Step 6: Final answer
    x = 323,053.52

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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.