Home / 908,907.72-1,255,490.64-679,065.54

Finding the Fourth Proportional to 908,907.72, 1,255,490.64 and 679,065.54

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Solution

The fourth proportional to 908,907.72, 1,255,490.64 and 679,065.54 is: 938,005.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,907.72 : 1,255,490.64 = 679,065.54 : x
  2. Step 2: Convert to fraction form
    908,907.72/1,255,490.64 = 679,065.54/x
  3. Step 3: Cross multiply
    908,907.72x = 1,255,490.64 × 679,065.54
  4. Step 4: Simplify right side
    908,907.72x = 852,560,429,416.55
  5. Step 5: Solve for x
    x = 852,560,429,416.55/908,907.72
  6. Step 6: Final answer
    x = 938,005.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.