Home / 828,176.40-1,142,856.96-465,615.60

Finding the Fourth Proportional to 828,176.40, 1,142,856.96 and 465,615.60

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Solution

The fourth proportional to 828,176.40, 1,142,856.96 and 465,615.60 is: 642,534.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,176.40 : 1,142,856.96 = 465,615.60 : x
  2. Step 2: Convert to fraction form
    828,176.40/1,142,856.96 = 465,615.60/x
  3. Step 3: Cross multiply
    828,176.40x = 1,142,856.96 × 465,615.60
  4. Step 4: Simplify right side
    828,176.40x = 532,132,029,144.58
  5. Step 5: Solve for x
    x = 532,132,029,144.58/828,176.40
  6. Step 6: Final answer
    x = 642,534.64

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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.