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Finding the Fourth Proportional to 562,664.02, 776,538.76 and 321,006.20

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Solution

The fourth proportional to 562,664.02, 776,538.76 and 321,006.20 is: 443,024.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,664.02 : 776,538.76 = 321,006.20 : x
  2. Step 2: Convert to fraction form
    562,664.02/776,538.76 = 321,006.20/x
  3. Step 3: Cross multiply
    562,664.02x = 776,538.76 × 321,006.20
  4. Step 4: Simplify right side
    562,664.02x = 249,273,756,500.31
  5. Step 5: Solve for x
    x = 249,273,756,500.31/562,664.02
  6. Step 6: Final answer
    x = 443,024.16

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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.