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Finding the Fourth Proportional to 629,266.95, 868,710.29 and 426,390.03

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Solution

The fourth proportional to 629,266.95, 868,710.29 and 426,390.03 is: 588,636.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,266.95 : 868,710.29 = 426,390.03 : x
  2. Step 2: Convert to fraction form
    629,266.95/868,710.29 = 426,390.03/x
  3. Step 3: Cross multiply
    629,266.95x = 868,710.29 × 426,390.03
  4. Step 4: Simplify right side
    629,266.95x = 370,409,404,482.46
  5. Step 5: Solve for x
    x = 370,409,404,482.46/629,266.95
  6. Step 6: Final answer
    x = 588,636.36

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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.