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Finding the Fourth Proportional to 487,730.16, 673,129.44 and 296,732.16

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Solution

The fourth proportional to 487,730.16, 673,129.44 and 296,732.16 is: 409,527.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,730.16 : 673,129.44 = 296,732.16 : x
  2. Step 2: Convert to fraction form
    487,730.16/673,129.44 = 296,732.16/x
  3. Step 3: Cross multiply
    487,730.16x = 673,129.44 × 296,732.16
  4. Step 4: Simplify right side
    487,730.16x = 199,739,152,690.79
  5. Step 5: Solve for x
    x = 199,739,152,690.79/487,730.16
  6. Step 6: Final answer
    x = 409,527.99

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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.