Home / 885,426.78-1,221,883.32-503,453.57

Finding the Fourth Proportional to 885,426.78, 1,221,883.32 and 503,453.57

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Solution

The fourth proportional to 885,426.78, 1,221,883.32 and 503,453.57 is: 694,762.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,426.78 : 1,221,883.32 = 503,453.57 : x
  2. Step 2: Convert to fraction form
    885,426.78/1,221,883.32 = 503,453.57/x
  3. Step 3: Cross multiply
    885,426.78x = 1,221,883.32 × 503,453.57
  4. Step 4: Simplify right side
    885,426.78x = 615,161,513,468.04
  5. Step 5: Solve for x
    x = 615,161,513,468.04/885,426.78
  6. Step 6: Final answer
    x = 694,762.71

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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.