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Finding the Fourth Proportional to 562,767.72, 776,614.87 and 304,639.40

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Solution

The fourth proportional to 562,767.72, 776,614.87 and 304,639.40 is: 420,399.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,767.72 : 776,614.87 = 304,639.40 : x
  2. Step 2: Convert to fraction form
    562,767.72/776,614.87 = 304,639.40/x
  3. Step 3: Cross multiply
    562,767.72x = 776,614.87 × 304,639.40
  4. Step 4: Simplify right side
    562,767.72x = 236,587,490,904.21
  5. Step 5: Solve for x
    x = 236,587,490,904.21/562,767.72
  6. Step 6: Final answer
    x = 420,399.89

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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.