Home / 1,147,985.84-1,584,180.70-631,691.45

Finding the Fourth Proportional to 1,147,985.84, 1,584,180.70 and 631,691.45

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Solution

The fourth proportional to 1,147,985.84, 1,584,180.70 and 631,691.45 is: 871,712.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,985.84 : 1,584,180.70 = 631,691.45 : x
  2. Step 2: Convert to fraction form
    1,147,985.84/1,584,180.70 = 631,691.45/x
  3. Step 3: Cross multiply
    1,147,985.84x = 1,584,180.70 × 631,691.45
  4. Step 4: Simplify right side
    1,147,985.84x = 1,000,713,403,438.82
  5. Step 5: Solve for x
    x = 1,000,713,403,438.82/1,147,985.84
  6. Step 6: Final answer
    x = 871,712.33

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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.