Home / 699,246.40-1,048,869.60-418,619.20

Finding the Fourth Proportional to 699,246.40, 1,048,869.60 and 418,619.20

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Solution

The fourth proportional to 699,246.40, 1,048,869.60 and 418,619.20 is: 627,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,246.40 : 1,048,869.60 = 418,619.20 : x
  2. Step 2: Convert to fraction form
    699,246.40/1,048,869.60 = 418,619.20/x
  3. Step 3: Cross multiply
    699,246.40x = 1,048,869.60 × 418,619.20
  4. Step 4: Simplify right side
    699,246.40x = 439,076,952,856.32
  5. Step 5: Solve for x
    x = 439,076,952,856.32/699,246.40
  6. Step 6: Final answer
    x = 627,928.80

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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.