Home / 831,256.83-1,147,130.71-449,282.70

Finding the Fourth Proportional to 831,256.83, 1,147,130.71 and 449,282.70

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Solution

The fourth proportional to 831,256.83, 1,147,130.71 and 449,282.70 is: 620,008.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,256.83 : 1,147,130.71 = 449,282.70 : x
  2. Step 2: Convert to fraction form
    831,256.83/1,147,130.71 = 449,282.70/x
  3. Step 3: Cross multiply
    831,256.83x = 1,147,130.71 × 449,282.70
  4. Step 4: Simplify right side
    831,256.83x = 515,385,981,518.51
  5. Step 5: Solve for x
    x = 515,385,981,518.51/831,256.83
  6. Step 6: Final answer
    x = 620,008.12

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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.