Home / 908,840.21-1,363,112.57-429,067.08

Finding the Fourth Proportional to 908,840.21, 1,363,112.57 and 429,067.08

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Solution

The fourth proportional to 908,840.21, 1,363,112.57 and 429,067.08 is: 643,530.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,840.21 : 1,363,112.57 = 429,067.08 : x
  2. Step 2: Convert to fraction form
    908,840.21/1,363,112.57 = 429,067.08/x
  3. Step 3: Cross multiply
    908,840.21x = 1,363,112.57 × 429,067.08
  4. Step 4: Simplify right side
    908,840.21x = 584,866,727,975.86
  5. Step 5: Solve for x
    x = 584,866,727,975.86/908,840.21
  6. Step 6: Final answer
    x = 643,530.87

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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.