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Finding the Fourth Proportional to 563,005.97, 777,004.12 and 321,325.16

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Solution

The fourth proportional to 563,005.97, 777,004.12 and 321,325.16 is: 443,460.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,005.97 : 777,004.12 = 321,325.16 : x
  2. Step 2: Convert to fraction form
    563,005.97/777,004.12 = 321,325.16/x
  3. Step 3: Cross multiply
    563,005.97x = 777,004.12 × 321,325.16
  4. Step 4: Simplify right side
    563,005.97x = 249,670,969,696.30
  5. Step 5: Solve for x
    x = 249,670,969,696.30/563,005.97
  6. Step 6: Final answer
    x = 443,460.61

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1.5x scale

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.