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Finding the Fourth Proportional to 708,880.87, 978,275.01 and 433,283.32

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Solution

The fourth proportional to 708,880.87, 978,275.01 and 433,283.32 is: 597,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,880.87 : 978,275.01 = 433,283.32 : x
  2. Step 2: Convert to fraction form
    708,880.87/978,275.01 = 433,283.32/x
  3. Step 3: Cross multiply
    708,880.87x = 978,275.01 × 433,283.32
  4. Step 4: Simplify right side
    708,880.87x = 423,870,244,205.83
  5. Step 5: Solve for x
    x = 423,870,244,205.83/708,880.87
  6. Step 6: Final answer
    x = 597,942.85

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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.