Home / 1,523,420.40-2,285,138.76-458,455.20

Finding the Fourth Proportional to 1,523,420.40, 2,285,138.76 and 458,455.20

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Solution

The fourth proportional to 1,523,420.40, 2,285,138.76 and 458,455.20 is: 687,685.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,523,420.40 : 2,285,138.76 = 458,455.20 : x
  2. Step 2: Convert to fraction form
    1,523,420.40/2,285,138.76 = 458,455.20/x
  3. Step 3: Cross multiply
    1,523,420.40x = 2,285,138.76 × 458,455.20
  4. Step 4: Simplify right side
    1,523,420.40x = 1,047,633,747,243.55
  5. Step 5: Solve for x
    x = 1,047,633,747,243.55/1,523,420.40
  6. Step 6: Final answer
    x = 687,685.26

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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.