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Finding the Fourth Proportional to 868,810.60, 1,303,604.70 and 395,252.20

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Solution

The fourth proportional to 868,810.60, 1,303,604.70 and 395,252.20 is: 593,055.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,810.60 : 1,303,604.70 = 395,252.20 : x
  2. Step 2: Convert to fraction form
    868,810.60/1,303,604.70 = 395,252.20/x
  3. Step 3: Cross multiply
    868,810.60x = 1,303,604.70 × 395,252.20
  4. Step 4: Simplify right side
    868,810.60x = 515,252,625,605.34
  5. Step 5: Solve for x
    x = 515,252,625,605.34/868,810.60
  6. Step 6: Final answer
    x = 593,055.18

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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.