Home / 868,081.60-1,302,122.40-299,461.60

Finding the Fourth Proportional to 868,081.60, 1,302,122.40 and 299,461.60

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Solution

The fourth proportional to 868,081.60, 1,302,122.40 and 299,461.60 is: 449,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,081.60 : 1,302,122.40 = 299,461.60 : x
  2. Step 2: Convert to fraction form
    868,081.60/1,302,122.40 = 299,461.60/x
  3. Step 3: Cross multiply
    868,081.60x = 1,302,122.40 × 299,461.60
  4. Step 4: Simplify right side
    868,081.60x = 389,935,657,299.84
  5. Step 5: Solve for x
    x = 389,935,657,299.84/868,081.60
  6. Step 6: Final answer
    x = 449,192.40

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Double scale
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Similar ratio
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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.