Home / 885,105.97-1,221,444.43-497,921.65

Finding the Fourth Proportional to 885,105.97, 1,221,444.43 and 497,921.65

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Solution

The fourth proportional to 885,105.97, 1,221,444.43 and 497,921.65 is: 687,130.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,105.97 : 1,221,444.43 = 497,921.65 : x
  2. Step 2: Convert to fraction form
    885,105.97/1,221,444.43 = 497,921.65/x
  3. Step 3: Cross multiply
    885,105.97x = 1,221,444.43 × 497,921.65
  4. Step 4: Simplify right side
    885,105.97x = 608,183,621,670.49
  5. Step 5: Solve for x
    x = 608,183,621,670.49/885,105.97
  6. Step 6: Final answer
    x = 687,130.86

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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.