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Finding the Fourth Proportional to 690,634.35, 953,222.45 and 464,148.63

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Solution

The fourth proportional to 690,634.35, 953,222.45 and 464,148.63 is: 640,623.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,634.35 : 953,222.45 = 464,148.63 : x
  2. Step 2: Convert to fraction form
    690,634.35/953,222.45 = 464,148.63/x
  3. Step 3: Cross multiply
    690,634.35x = 953,222.45 × 464,148.63
  4. Step 4: Simplify right side
    690,634.35x = 442,436,891,932.00
  5. Step 5: Solve for x
    x = 442,436,891,932.00/690,634.35
  6. Step 6: Final answer
    x = 640,623.93

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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.