Home / 828,156.32-1,142,848.85-465,581.79

Finding the Fourth Proportional to 828,156.32, 1,142,848.85 and 465,581.79

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Solution

The fourth proportional to 828,156.32, 1,142,848.85 and 465,581.79 is: 642,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,156.32 : 1,142,848.85 = 465,581.79 : x
  2. Step 2: Convert to fraction form
    828,156.32/1,142,848.85 = 465,581.79/x
  3. Step 3: Cross multiply
    828,156.32x = 1,142,848.85 × 465,581.79
  4. Step 4: Simplify right side
    828,156.32x = 532,089,610,954.53
  5. Step 5: Solve for x
    x = 532,089,610,954.53/828,156.32
  6. Step 6: Final answer
    x = 642,499.01

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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.