Home / 489,834.76-675,778.80-282,966.44

Finding the Fourth Proportional to 489,834.76, 675,778.80 and 282,966.44

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Solution

The fourth proportional to 489,834.76, 675,778.80 and 282,966.44 is: 390,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,834.76 : 675,778.80 = 282,966.44 : x
  2. Step 2: Convert to fraction form
    489,834.76/675,778.80 = 282,966.44/x
  3. Step 3: Cross multiply
    489,834.76x = 675,778.80 × 282,966.44
  4. Step 4: Simplify right side
    489,834.76x = 191,222,721,263.47
  5. Step 5: Solve for x
    x = 191,222,721,263.47/489,834.76
  6. Step 6: Final answer
    x = 390,382.10

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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.