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Finding the Fourth Proportional to 902,770.65, 1,353,007.80 and 369,689.40

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Solution

The fourth proportional to 902,770.65, 1,353,007.80 and 369,689.40 is: 554,063.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,770.65 : 1,353,007.80 = 369,689.40 : x
  2. Step 2: Convert to fraction form
    902,770.65/1,353,007.80 = 369,689.40/x
  3. Step 3: Cross multiply
    902,770.65x = 1,353,007.80 × 369,689.40
  4. Step 4: Simplify right side
    902,770.65x = 500,192,641,777.32
  5. Step 5: Solve for x
    x = 500,192,641,777.32/902,770.65
  6. Step 6: Final answer
    x = 554,063.92

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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.