Home / 648,636.90-972,955.37-472,266.28

Finding the Fourth Proportional to 648,636.90, 972,955.37 and 472,266.28

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Solution

The fourth proportional to 648,636.90, 972,955.37 and 472,266.28 is: 708,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,636.90 : 972,955.37 = 472,266.28 : x
  2. Step 2: Convert to fraction form
    648,636.90/972,955.37 = 472,266.28/x
  3. Step 3: Cross multiply
    648,636.90x = 972,955.37 × 472,266.28
  4. Step 4: Simplify right side
    648,636.90x = 459,494,013,195.92
  5. Step 5: Solve for x
    x = 459,494,013,195.92/648,636.90
  6. Step 6: Final answer
    x = 708,399.43

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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.