Home / 680,856.50-1,020,328.92-538,074.09

Finding the Fourth Proportional to 680,856.50, 1,020,328.92 and 538,074.09

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Solution

The fourth proportional to 680,856.50, 1,020,328.92 and 538,074.09 is: 806,355.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,856.50 : 1,020,328.92 = 538,074.09 : x
  2. Step 2: Convert to fraction form
    680,856.50/1,020,328.92 = 538,074.09/x
  3. Step 3: Cross multiply
    680,856.50x = 1,020,328.92 × 538,074.09
  4. Step 4: Simplify right side
    680,856.50x = 549,012,555,129.68
  5. Step 5: Solve for x
    x = 549,012,555,129.68/680,856.50
  6. Step 6: Final answer
    x = 806,355.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.