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Finding the Fourth Proportional to 631,368.30, 947,045.97 and 364,959.30

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Solution

The fourth proportional to 631,368.30, 947,045.97 and 364,959.30 is: 547,435.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,368.30 : 947,045.97 = 364,959.30 : x
  2. Step 2: Convert to fraction form
    631,368.30/947,045.97 = 364,959.30/x
  3. Step 3: Cross multiply
    631,368.30x = 947,045.97 × 364,959.30
  4. Step 4: Simplify right side
    631,368.30x = 345,633,234,279.02
  5. Step 5: Solve for x
    x = 345,633,234,279.02/631,368.30
  6. Step 6: Final answer
    x = 547,435.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.