Home / 678,298.40-1,017,447.60-205,056.80

Finding the Fourth Proportional to 678,298.40, 1,017,447.60 and 205,056.80

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Solution

The fourth proportional to 678,298.40, 1,017,447.60 and 205,056.80 is: 307,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,298.40 : 1,017,447.60 = 205,056.80 : x
  2. Step 2: Convert to fraction form
    678,298.40/1,017,447.60 = 205,056.80/x
  3. Step 3: Cross multiply
    678,298.40x = 1,017,447.60 × 205,056.80
  4. Step 4: Simplify right side
    678,298.40x = 208,634,549,023.68
  5. Step 5: Solve for x
    x = 208,634,549,023.68/678,298.40
  6. Step 6: Final answer
    x = 307,585.20

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Similar ratio
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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.