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Finding the Fourth Proportional to 896,873.72, 1,345,305.72 and 384,463.40

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Solution

The fourth proportional to 896,873.72, 1,345,305.72 and 384,463.40 is: 576,693.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,873.72 : 1,345,305.72 = 384,463.40 : x
  2. Step 2: Convert to fraction form
    896,873.72/1,345,305.72 = 384,463.40/x
  3. Step 3: Cross multiply
    896,873.72x = 1,345,305.72 × 384,463.40
  4. Step 4: Simplify right side
    896,873.72x = 517,220,811,150.65
  5. Step 5: Solve for x
    x = 517,220,811,150.65/896,873.72
  6. Step 6: Final answer
    x = 576,693.02

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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.