Home / 813,548.43-1,220,334.95-307,973.66

Finding the Fourth Proportional to 813,548.43, 1,220,334.95 and 307,973.66

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Solution

The fourth proportional to 813,548.43, 1,220,334.95 and 307,973.66 is: 461,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,548.43 : 1,220,334.95 = 307,973.66 : x
  2. Step 2: Convert to fraction form
    813,548.43/1,220,334.95 = 307,973.66/x
  3. Step 3: Cross multiply
    813,548.43x = 1,220,334.95 × 307,973.66
  4. Step 4: Simplify right side
    813,548.43x = 375,831,020,977.42
  5. Step 5: Solve for x
    x = 375,831,020,977.42/813,548.43
  6. Step 6: Final answer
    x = 461,965.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.