Home / 684,217.60-1,026,326.40-210,860.80

Finding the Fourth Proportional to 684,217.60, 1,026,326.40 and 210,860.80

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Solution

The fourth proportional to 684,217.60, 1,026,326.40 and 210,860.80 is: 316,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,217.60 : 1,026,326.40 = 210,860.80 : x
  2. Step 2: Convert to fraction form
    684,217.60/1,026,326.40 = 210,860.80/x
  3. Step 3: Cross multiply
    684,217.60x = 1,026,326.40 × 210,860.80
  4. Step 4: Simplify right side
    684,217.60x = 216,412,005,765.12
  5. Step 5: Solve for x
    x = 216,412,005,765.12/684,217.60
  6. Step 6: Final answer
    x = 316,291.20

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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.