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Finding the Fourth Proportional to 606,461.58, 908,954.46 and 429,019.74

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Solution

The fourth proportional to 606,461.58, 908,954.46 and 429,019.74 is: 643,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,461.58 : 908,954.46 = 429,019.74 : x
  2. Step 2: Convert to fraction form
    606,461.58/908,954.46 = 429,019.74/x
  3. Step 3: Cross multiply
    606,461.58x = 908,954.46 × 429,019.74
  4. Step 4: Simplify right side
    606,461.58x = 389,959,406,101.04
  5. Step 5: Solve for x
    x = 389,959,406,101.04/606,461.58
  6. Step 6: Final answer
    x = 643,007.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.