Home / 648,266.20-972,975.30-381,693.40

Finding the Fourth Proportional to 648,266.20, 972,975.30 and 381,693.40

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Solution

The fourth proportional to 648,266.20, 972,975.30 and 381,693.40 is: 572,879.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,266.20 : 972,975.30 = 381,693.40 : x
  2. Step 2: Convert to fraction form
    648,266.20/972,975.30 = 381,693.40/x
  3. Step 3: Cross multiply
    648,266.20x = 972,975.30 × 381,693.40
  4. Step 4: Simplify right side
    648,266.20x = 371,378,250,373.02
  5. Step 5: Solve for x
    x = 371,378,250,373.02/648,266.20
  6. Step 6: Final answer
    x = 572,879.24

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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.