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Finding the Fourth Proportional to 787,509.60, 1,182,430.80 and 610,216.80

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Solution

The fourth proportional to 787,509.60, 1,182,430.80 and 610,216.80 is: 916,229.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,509.60 : 1,182,430.80 = 610,216.80 : x
  2. Step 2: Convert to fraction form
    787,509.60/1,182,430.80 = 610,216.80/x
  3. Step 3: Cross multiply
    787,509.60x = 1,182,430.80 × 610,216.80
  4. Step 4: Simplify right side
    787,509.60x = 721,539,138,997.44
  5. Step 5: Solve for x
    x = 721,539,138,997.44/787,509.60
  6. Step 6: Final answer
    x = 916,229.01

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1.5x scale

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.