Home / 908,936.72-1,363,257.40-429,163.59

Finding the Fourth Proportional to 908,936.72, 1,363,257.40 and 429,163.59

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Solution

The fourth proportional to 908,936.72, 1,363,257.40 and 429,163.59 is: 643,675.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,936.72 : 1,363,257.40 = 429,163.59 : x
  2. Step 2: Convert to fraction form
    908,936.72/1,363,257.40 = 429,163.59/x
  3. Step 3: Cross multiply
    908,936.72x = 1,363,257.40 × 429,163.59
  4. Step 4: Simplify right side
    908,936.72x = 585,060,439,878.07
  5. Step 5: Solve for x
    x = 585,060,439,878.07/908,936.72
  6. Step 6: Final answer
    x = 643,675.66

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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.