Home / 730,856.04-1,008,212.04-489,148.80

Finding the Fourth Proportional to 730,856.04, 1,008,212.04 and 489,148.80

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Solution

The fourth proportional to 730,856.04, 1,008,212.04 and 489,148.80 is: 674,778.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,856.04 : 1,008,212.04 = 489,148.80 : x
  2. Step 2: Convert to fraction form
    730,856.04/1,008,212.04 = 489,148.80/x
  3. Step 3: Cross multiply
    730,856.04x = 1,008,212.04 × 489,148.80
  4. Step 4: Simplify right side
    730,856.04x = 493,165,709,511.55
  5. Step 5: Solve for x
    x = 493,165,709,511.55/730,856.04
  6. Step 6: Final answer
    x = 674,778.18

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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.