Home / 1,115,219.67-1,538,952.98-631,774.95

Finding the Fourth Proportional to 1,115,219.67, 1,538,952.98 and 631,774.95

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Solution

The fourth proportional to 1,115,219.67, 1,538,952.98 and 631,774.95 is: 871,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,219.67 : 1,538,952.98 = 631,774.95 : x
  2. Step 2: Convert to fraction form
    1,115,219.67/1,538,952.98 = 631,774.95/x
  3. Step 3: Cross multiply
    1,115,219.67x = 1,538,952.98 × 631,774.95
  4. Step 4: Simplify right side
    1,115,219.67x = 972,271,941,991.85
  5. Step 5: Solve for x
    x = 972,271,941,991.85/1,115,219.67
  6. Step 6: Final answer
    x = 871,821.01

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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.