Home / 853,293.12-1,177,555.68-490,724.16

Finding the Fourth Proportional to 853,293.12, 1,177,555.68 and 490,724.16

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Solution

The fourth proportional to 853,293.12, 1,177,555.68 and 490,724.16 is: 677,205.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,293.12 : 1,177,555.68 = 490,724.16 : x
  2. Step 2: Convert to fraction form
    853,293.12/1,177,555.68 = 490,724.16/x
  3. Step 3: Cross multiply
    853,293.12x = 1,177,555.68 × 490,724.16
  4. Step 4: Simplify right side
    853,293.12x = 577,855,021,921.23
  5. Step 5: Solve for x
    x = 577,855,021,921.23/853,293.12
  6. Step 6: Final answer
    x = 677,205.77

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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.