Home / 916,894.80-1,265,251.40-508,964.56

Finding the Fourth Proportional to 916,894.80, 1,265,251.40 and 508,964.56

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Solution

The fourth proportional to 916,894.80, 1,265,251.40 and 508,964.56 is: 702,335.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,894.80 : 1,265,251.40 = 508,964.56 : x
  2. Step 2: Convert to fraction form
    916,894.80/1,265,251.40 = 508,964.56/x
  3. Step 3: Cross multiply
    916,894.80x = 1,265,251.40 × 508,964.56
  4. Step 4: Simplify right side
    916,894.80x = 643,968,122,090.38
  5. Step 5: Solve for x
    x = 643,968,122,090.38/916,894.80
  6. Step 6: Final answer
    x = 702,335.89

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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.