Home / 1,008,922.79-1,391,526.14-646,380.38

Finding the Fourth Proportional to 1,008,922.79, 1,391,526.14 and 646,380.38

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Solution

The fourth proportional to 1,008,922.79, 1,391,526.14 and 646,380.38 is: 891,500.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,922.79 : 1,391,526.14 = 646,380.38 : x
  2. Step 2: Convert to fraction form
    1,008,922.79/1,391,526.14 = 646,380.38/x
  3. Step 3: Cross multiply
    1,008,922.79x = 1,391,526.14 × 646,380.38
  4. Step 4: Simplify right side
    1,008,922.79x = 899,455,191,486.38
  5. Step 5: Solve for x
    x = 899,455,191,486.38/1,008,922.79
  6. Step 6: Final answer
    x = 891,500.52

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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.