Home / 856,935.38-1,182,609.39-489,444.45

Finding the Fourth Proportional to 856,935.38, 1,182,609.39 and 489,444.45

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Solution

The fourth proportional to 856,935.38, 1,182,609.39 and 489,444.45 is: 675,455.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,935.38 : 1,182,609.39 = 489,444.45 : x
  2. Step 2: Convert to fraction form
    856,935.38/1,182,609.39 = 489,444.45/x
  3. Step 3: Cross multiply
    856,935.38x = 1,182,609.39 × 489,444.45
  4. Step 4: Simplify right side
    856,935.38x = 578,821,602,453.39
  5. Step 5: Solve for x
    x = 578,821,602,453.39/856,935.38
  6. Step 6: Final answer
    x = 675,455.37

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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.