Home / 917,286.30-1,375,929.45-355,956.30

Finding the Fourth Proportional to 917,286.30, 1,375,929.45 and 355,956.30

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Solution

The fourth proportional to 917,286.30, 1,375,929.45 and 355,956.30 is: 533,934.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,286.30 : 1,375,929.45 = 355,956.30 : x
  2. Step 2: Convert to fraction form
    917,286.30/1,375,929.45 = 355,956.30/x
  3. Step 3: Cross multiply
    917,286.30x = 1,375,929.45 × 355,956.30
  4. Step 4: Simplify right side
    917,286.30x = 489,770,756,083.04
  5. Step 5: Solve for x
    x = 489,770,756,083.04/917,286.30
  6. Step 6: Final answer
    x = 533,934.45

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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.