Home / 821,384.84-1,134,620.52-618,965.84

Finding the Fourth Proportional to 821,384.84, 1,134,620.52 and 618,965.84

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Solution

The fourth proportional to 821,384.84, 1,134,620.52 and 618,965.84 is: 855,008.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,384.84 : 1,134,620.52 = 618,965.84 : x
  2. Step 2: Convert to fraction form
    821,384.84/1,134,620.52 = 618,965.84/x
  3. Step 3: Cross multiply
    821,384.84x = 1,134,620.52 × 618,965.84
  4. Step 4: Simplify right side
    821,384.84x = 702,291,343,243.04
  5. Step 5: Solve for x
    x = 702,291,343,243.04/821,384.84
  6. Step 6: Final answer
    x = 855,008.89

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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.