Home / 691,372.72-1,037,039.64-377,815.28

Finding the Fourth Proportional to 691,372.72, 1,037,039.64 and 377,815.28

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Solution

The fourth proportional to 691,372.72, 1,037,039.64 and 377,815.28 is: 566,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,372.72 : 1,037,039.64 = 377,815.28 : x
  2. Step 2: Convert to fraction form
    691,372.72/1,037,039.64 = 377,815.28/x
  3. Step 3: Cross multiply
    691,372.72x = 1,037,039.64 × 377,815.28
  4. Step 4: Simplify right side
    691,372.72x = 391,809,421,957.70
  5. Step 5: Solve for x
    x = 391,809,421,957.70/691,372.72
  6. Step 6: Final answer
    x = 566,712.30

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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.