Home / 644,322.20-966,483.30-495,314.60

Finding the Fourth Proportional to 644,322.20, 966,483.30 and 495,314.60

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Solution

The fourth proportional to 644,322.20, 966,483.30 and 495,314.60 is: 742,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,322.20 : 966,483.30 = 495,314.60 : x
  2. Step 2: Convert to fraction form
    644,322.20/966,483.30 = 495,314.60/x
  3. Step 3: Cross multiply
    644,322.20x = 966,483.30 × 495,314.60
  4. Step 4: Simplify right side
    644,322.20x = 478,713,289,146.18
  5. Step 5: Solve for x
    x = 478,713,289,146.18/644,322.20
  6. Step 6: Final answer
    x = 742,971.90

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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.