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Finding the Fourth Proportional to 808,164.16, 1,115,744.40 and 718,492

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Solution

The fourth proportional to 808,164.16, 1,115,744.40 and 718,492 is: 991,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,164.16 : 1,115,744.40 = 718,492 : x
  2. Step 2: Convert to fraction form
    808,164.16/1,115,744.40 = 718,492/x
  3. Step 3: Cross multiply
    808,164.16x = 1,115,744.40 × 718,492
  4. Step 4: Simplify right side
    808,164.16x = 801,653,425,444.80
  5. Step 5: Solve for x
    x = 801,653,425,444.80/808,164.16
  6. Step 6: Final answer
    x = 991,943.80

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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.