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Finding the Fourth Proportional to 562,937.54, 776,838.75 and 321,215.72

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Solution

The fourth proportional to 562,937.54, 776,838.75 and 321,215.72 is: 443,269.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,937.54 : 776,838.75 = 321,215.72 : x
  2. Step 2: Convert to fraction form
    562,937.54/776,838.75 = 321,215.72/x
  3. Step 3: Cross multiply
    562,937.54x = 776,838.75 × 321,215.72
  4. Step 4: Simplify right side
    562,937.54x = 249,532,814,520.96
  5. Step 5: Solve for x
    x = 249,532,814,520.96/562,937.54
  6. Step 6: Final answer
    x = 443,269.10

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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.