Home / 885,440.78-1,221,796.08-503,475.76

Finding the Fourth Proportional to 885,440.78, 1,221,796.08 and 503,475.76

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Solution

The fourth proportional to 885,440.78, 1,221,796.08 and 503,475.76 is: 694,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,440.78 : 1,221,796.08 = 503,475.76 : x
  2. Step 2: Convert to fraction form
    885,440.78/1,221,796.08 = 503,475.76/x
  3. Step 3: Cross multiply
    885,440.78x = 1,221,796.08 × 503,475.76
  4. Step 4: Simplify right side
    885,440.78x = 615,144,709,943.02
  5. Step 5: Solve for x
    x = 615,144,709,943.02/885,440.78
  6. Step 6: Final answer
    x = 694,732.75

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.