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Finding the Fourth Proportional to 1,174,429, 1,620,713.64 and 637,885

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Solution

The fourth proportional to 1,174,429, 1,620,713.64 and 637,885 is: 880,282.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174,429 : 1,620,713.64 = 637,885 : x
  2. Step 2: Convert to fraction form
    1,174,429/1,620,713.64 = 637,885/x
  3. Step 3: Cross multiply
    1,174,429x = 1,620,713.64 × 637,885
  4. Step 4: Simplify right side
    1,174,429x = 1,033,828,920,251.40
  5. Step 5: Solve for x
    x = 1,033,828,920,251.40/1,174,429
  6. Step 6: Final answer
    x = 880,282.18

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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.