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Finding the Fourth Proportional to 972,007.65, 1,455,387.08 and 972,007.65

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Solution

The fourth proportional to 972,007.65, 1,455,387.08 and 972,007.65 is: 1,455,387.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,007.65 : 1,455,387.08 = 972,007.65 : x
  2. Step 2: Convert to fraction form
    972,007.65/1,455,387.08 = 972,007.65/x
  3. Step 3: Cross multiply
    972,007.65x = 1,455,387.08 × 972,007.65
  4. Step 4: Simplify right side
    972,007.65x = 1,414,647,370,611.12
  5. Step 5: Solve for x
    x = 1,414,647,370,611.12/972,007.65
  6. Step 6: Final answer
    x = 1,455,387.08

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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.