Home / 810,001.70-1,215,002.55-277,345.70

Finding the Fourth Proportional to 810,001.70, 1,215,002.55 and 277,345.70

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Solution

The fourth proportional to 810,001.70, 1,215,002.55 and 277,345.70 is: 416,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,001.70 : 1,215,002.55 = 277,345.70 : x
  2. Step 2: Convert to fraction form
    810,001.70/1,215,002.55 = 277,345.70/x
  3. Step 3: Cross multiply
    810,001.70x = 1,215,002.55 × 277,345.70
  4. Step 4: Simplify right side
    810,001.70x = 336,975,732,731.54
  5. Step 5: Solve for x
    x = 336,975,732,731.54/810,001.70
  6. Step 6: Final answer
    x = 416,018.55

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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.