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Finding the Fourth Proportional to 1,019,569.60, 1,527,604.80 and 664,400.80

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Solution

The fourth proportional to 1,019,569.60, 1,527,604.80 and 664,400.80 is: 995,461.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,569.60 : 1,527,604.80 = 664,400.80 : x
  2. Step 2: Convert to fraction form
    1,019,569.60/1,527,604.80 = 664,400.80/x
  3. Step 3: Cross multiply
    1,019,569.60x = 1,527,604.80 × 664,400.80
  4. Step 4: Simplify right side
    1,019,569.60x = 1,014,941,851,203.84
  5. Step 5: Solve for x
    x = 1,014,941,851,203.84/1,019,569.60
  6. Step 6: Final answer
    x = 995,461.08

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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.