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Finding the Fourth Proportional to 1,008,297, 1,391,479.02 and 555,617.16

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Solution

The fourth proportional to 1,008,297, 1,391,479.02 and 555,617.16 is: 766,767.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,297 : 1,391,479.02 = 555,617.16 : x
  2. Step 2: Convert to fraction form
    1,008,297/1,391,479.02 = 555,617.16/x
  3. Step 3: Cross multiply
    1,008,297x = 1,391,479.02 × 555,617.16
  4. Step 4: Simplify right side
    1,008,297x = 773,129,621,291.98
  5. Step 5: Solve for x
    x = 773,129,621,291.98/1,008,297
  6. Step 6: Final answer
    x = 766,767.75

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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.