Home / 810,043.20-1,215,064.80-249,077.70

Finding the Fourth Proportional to 810,043.20, 1,215,064.80 and 249,077.70

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Solution

The fourth proportional to 810,043.20, 1,215,064.80 and 249,077.70 is: 373,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,043.20 : 1,215,064.80 = 249,077.70 : x
  2. Step 2: Convert to fraction form
    810,043.20/1,215,064.80 = 249,077.70/x
  3. Step 3: Cross multiply
    810,043.20x = 1,215,064.80 × 249,077.70
  4. Step 4: Simplify right side
    810,043.20x = 302,645,545,734.96
  5. Step 5: Solve for x
    x = 302,645,545,734.96/810,043.20
  6. Step 6: Final answer
    x = 373,616.55

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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.