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Finding the Fourth Proportional to 552,657.60, 828,986.40 and 545,659.20

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Solution

The fourth proportional to 552,657.60, 828,986.40 and 545,659.20 is: 818,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,657.60 : 828,986.40 = 545,659.20 : x
  2. Step 2: Convert to fraction form
    552,657.60/828,986.40 = 545,659.20/x
  3. Step 3: Cross multiply
    552,657.60x = 828,986.40 × 545,659.20
  4. Step 4: Simplify right side
    552,657.60x = 452,344,055,834.88
  5. Step 5: Solve for x
    x = 452,344,055,834.88/552,657.60
  6. Step 6: Final answer
    x = 818,488.80

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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.