Home / 688,231.60-1,032,347.40-214,964.80

Finding the Fourth Proportional to 688,231.60, 1,032,347.40 and 214,964.80

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Solution

The fourth proportional to 688,231.60, 1,032,347.40 and 214,964.80 is: 322,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,231.60 : 1,032,347.40 = 214,964.80 : x
  2. Step 2: Convert to fraction form
    688,231.60/1,032,347.40 = 214,964.80/x
  3. Step 3: Cross multiply
    688,231.60x = 1,032,347.40 × 214,964.80
  4. Step 4: Simplify right side
    688,231.60x = 221,918,352,371.52
  5. Step 5: Solve for x
    x = 221,918,352,371.52/688,231.60
  6. Step 6: Final answer
    x = 322,447.20

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1.5x scale

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.