Home / 885,293.43-1,221,669.57-522,834.09

Finding the Fourth Proportional to 885,293.43, 1,221,669.57 and 522,834.09

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Solution

The fourth proportional to 885,293.43, 1,221,669.57 and 522,834.09 is: 721,490.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,293.43 : 1,221,669.57 = 522,834.09 : x
  2. Step 2: Convert to fraction form
    885,293.43/1,221,669.57 = 522,834.09/x
  3. Step 3: Cross multiply
    885,293.43x = 1,221,669.57 × 522,834.09
  4. Step 4: Simplify right side
    885,293.43x = 638,730,497,911.64
  5. Step 5: Solve for x
    x = 638,730,497,911.64/885,293.43
  6. Step 6: Final answer
    x = 721,490.16

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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.