Home / 694,528.80-1,042,484.40-339,943.20

Finding the Fourth Proportional to 694,528.80, 1,042,484.40 and 339,943.20

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Solution

The fourth proportional to 694,528.80, 1,042,484.40 and 339,943.20 is: 510,253.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,528.80 : 1,042,484.40 = 339,943.20 : x
  2. Step 2: Convert to fraction form
    694,528.80/1,042,484.40 = 339,943.20/x
  3. Step 3: Cross multiply
    694,528.80x = 1,042,484.40 × 339,943.20
  4. Step 4: Simplify right side
    694,528.80x = 354,385,482,886.08
  5. Step 5: Solve for x
    x = 354,385,482,886.08/694,528.80
  6. Step 6: Final answer
    x = 510,253.11

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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.