Home / 828,162.20-1,142,856.95-465,587.67

Finding the Fourth Proportional to 828,162.20, 1,142,856.95 and 465,587.67

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Solution

The fourth proportional to 828,162.20, 1,142,856.95 and 465,587.67 is: 642,507.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,162.20 : 1,142,856.95 = 465,587.67 : x
  2. Step 2: Convert to fraction form
    828,162.20/1,142,856.95 = 465,587.67/x
  3. Step 3: Cross multiply
    828,162.20x = 1,142,856.95 × 465,587.67
  4. Step 4: Simplify right side
    828,162.20x = 532,100,104,493.81
  5. Step 5: Solve for x
    x = 532,100,104,493.81/828,162.20
  6. Step 6: Final answer
    x = 642,507.11

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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.