Home / 1,001,238.12-1,381,840.02-571,419.72

Finding the Fourth Proportional to 1,001,238.12, 1,381,840.02 and 571,419.72

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Solution

The fourth proportional to 1,001,238.12, 1,381,840.02 and 571,419.72 is: 788,634.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,238.12 : 1,381,840.02 = 571,419.72 : x
  2. Step 2: Convert to fraction form
    1,001,238.12/1,381,840.02 = 571,419.72/x
  3. Step 3: Cross multiply
    1,001,238.12x = 1,381,840.02 × 571,419.72
  4. Step 4: Simplify right side
    1,001,238.12x = 789,610,637,313.19
  5. Step 5: Solve for x
    x = 789,610,637,313.19/1,001,238.12
  6. Step 6: Final answer
    x = 788,634.21

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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.