Home / 916,611.20-1,374,916.80-251,830.40

Finding the Fourth Proportional to 916,611.20, 1,374,916.80 and 251,830.40

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Solution

The fourth proportional to 916,611.20, 1,374,916.80 and 251,830.40 is: 377,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,611.20 : 1,374,916.80 = 251,830.40 : x
  2. Step 2: Convert to fraction form
    916,611.20/1,374,916.80 = 251,830.40/x
  3. Step 3: Cross multiply
    916,611.20x = 1,374,916.80 × 251,830.40
  4. Step 4: Simplify right side
    916,611.20x = 346,245,847,710.72
  5. Step 5: Solve for x
    x = 346,245,847,710.72/916,611.20
  6. Step 6: Final answer
    x = 377,745.60

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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.