Home / 727,228.80-1,090,843.20-475,286.40

Finding the Fourth Proportional to 727,228.80, 1,090,843.20 and 475,286.40

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Solution

The fourth proportional to 727,228.80, 1,090,843.20 and 475,286.40 is: 712,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,228.80 : 1,090,843.20 = 475,286.40 : x
  2. Step 2: Convert to fraction form
    727,228.80/1,090,843.20 = 475,286.40/x
  3. Step 3: Cross multiply
    727,228.80x = 1,090,843.20 × 475,286.40
  4. Step 4: Simplify right side
    727,228.80x = 518,462,937,492.48
  5. Step 5: Solve for x
    x = 518,462,937,492.48/727,228.80
  6. Step 6: Final answer
    x = 712,929.60

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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.