Home / 514,810.20-772,215.30-436,272.60

Finding the Fourth Proportional to 514,810.20, 772,215.30 and 436,272.60

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Solution

The fourth proportional to 514,810.20, 772,215.30 and 436,272.60 is: 654,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,810.20 : 772,215.30 = 436,272.60 : x
  2. Step 2: Convert to fraction form
    514,810.20/772,215.30 = 436,272.60/x
  3. Step 3: Cross multiply
    514,810.20x = 772,215.30 × 436,272.60
  4. Step 4: Simplify right side
    514,810.20x = 336,896,376,690.78
  5. Step 5: Solve for x
    x = 336,896,376,690.78/514,810.20
  6. Step 6: Final answer
    x = 654,408.90

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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.