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Finding the Fourth Proportional to 708,949.24, 978,677.58 and 437,065.72

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Solution

The fourth proportional to 708,949.24, 978,677.58 and 437,065.72 is: 603,352.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,949.24 : 978,677.58 = 437,065.72 : x
  2. Step 2: Convert to fraction form
    708,949.24/978,677.58 = 437,065.72/x
  3. Step 3: Cross multiply
    708,949.24x = 978,677.58 × 437,065.72
  4. Step 4: Simplify right side
    708,949.24x = 427,746,421,150.56
  5. Step 5: Solve for x
    x = 427,746,421,150.56/708,949.24
  6. Step 6: Final answer
    x = 603,352.68

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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.