Home / 885,057.40-1,221,022.38-512,275.12

Finding the Fourth Proportional to 885,057.40, 1,221,022.38 and 512,275.12

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Solution

The fourth proportional to 885,057.40, 1,221,022.38 and 512,275.12 is: 706,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,057.40 : 1,221,022.38 = 512,275.12 : x
  2. Step 2: Convert to fraction form
    885,057.40/1,221,022.38 = 512,275.12/x
  3. Step 3: Cross multiply
    885,057.40x = 1,221,022.38 × 512,275.12
  4. Step 4: Simplify right side
    885,057.40x = 625,499,386,237.19
  5. Step 5: Solve for x
    x = 625,499,386,237.19/885,057.40
  6. Step 6: Final answer
    x = 706,733.13

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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.