Home / 1,432,503.78-1,977,136.02-821,066.40

Finding the Fourth Proportional to 1,432,503.78, 1,977,136.02 and 821,066.40

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Solution

The fourth proportional to 1,432,503.78, 1,977,136.02 and 821,066.40 is: 1,133,232.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,503.78 : 1,977,136.02 = 821,066.40 : x
  2. Step 2: Convert to fraction form
    1,432,503.78/1,977,136.02 = 821,066.40/x
  3. Step 3: Cross multiply
    1,432,503.78x = 1,977,136.02 × 821,066.40
  4. Step 4: Simplify right side
    1,432,503.78x = 1,623,359,954,251.73
  5. Step 5: Solve for x
    x = 1,623,359,954,251.73/1,432,503.78
  6. Step 6: Final answer
    x = 1,133,232.58

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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.