Home / 810,192.30-1,215,288.45-495,005.10

Finding the Fourth Proportional to 810,192.30, 1,215,288.45 and 495,005.10

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Solution

The fourth proportional to 810,192.30, 1,215,288.45 and 495,005.10 is: 742,507.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,192.30 : 1,215,288.45 = 495,005.10 : x
  2. Step 2: Convert to fraction form
    810,192.30/1,215,288.45 = 495,005.10/x
  3. Step 3: Cross multiply
    810,192.30x = 1,215,288.45 × 495,005.10
  4. Step 4: Simplify right side
    810,192.30x = 601,573,980,721.10
  5. Step 5: Solve for x
    x = 601,573,980,721.10/810,192.30
  6. Step 6: Final answer
    x = 742,507.65

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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.