Home / 648,638.14-972,167.58-459,152.20

Finding the Fourth Proportional to 648,638.14, 972,167.58 and 459,152.20

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Solution

The fourth proportional to 648,638.14, 972,167.58 and 459,152.20 is: 688,169.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,638.14 : 972,167.58 = 459,152.20 : x
  2. Step 2: Convert to fraction form
    648,638.14/972,167.58 = 459,152.20/x
  3. Step 3: Cross multiply
    648,638.14x = 972,167.58 × 459,152.20
  4. Step 4: Simplify right side
    648,638.14x = 446,372,883,125.68
  5. Step 5: Solve for x
    x = 446,372,883,125.68/648,638.14
  6. Step 6: Final answer
    x = 688,169.34

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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.