Home / 831,278.22-1,147,228.92-463,870.88

Finding the Fourth Proportional to 831,278.22, 1,147,228.92 and 463,870.88

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Solution

The fourth proportional to 831,278.22, 1,147,228.92 and 463,870.88 is: 640,178.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,278.22 : 1,147,228.92 = 463,870.88 : x
  2. Step 2: Convert to fraction form
    831,278.22/1,147,228.92 = 463,870.88/x
  3. Step 3: Cross multiply
    831,278.22x = 1,147,228.92 × 463,870.88
  4. Step 4: Simplify right side
    831,278.22x = 532,166,082,945.71
  5. Step 5: Solve for x
    x = 532,166,082,945.71/831,278.22
  6. Step 6: Final answer
    x = 640,178.07

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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.