Home / 728,391.92-1,004,823.63-486,733.95

Finding the Fourth Proportional to 728,391.92, 1,004,823.63 and 486,733.95

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Solution

The fourth proportional to 728,391.92, 1,004,823.63 and 486,733.95 is: 671,454.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,391.92 : 1,004,823.63 = 486,733.95 : x
  2. Step 2: Convert to fraction form
    728,391.92/1,004,823.63 = 486,733.95/x
  3. Step 3: Cross multiply
    728,391.92x = 1,004,823.63 × 486,733.95
  4. Step 4: Simplify right side
    728,391.92x = 489,081,774,483.24
  5. Step 5: Solve for x
    x = 489,081,774,483.24/728,391.92
  6. Step 6: Final answer
    x = 671,454.15

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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.