Home / 691,464.03-1,037,185.76-421,671.45

Finding the Fourth Proportional to 691,464.03, 1,037,185.76 and 421,671.45

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Solution

The fourth proportional to 691,464.03, 1,037,185.76 and 421,671.45 is: 632,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,464.03 : 1,037,185.76 = 421,671.45 : x
  2. Step 2: Convert to fraction form
    691,464.03/1,037,185.76 = 421,671.45/x
  3. Step 3: Cross multiply
    691,464.03x = 1,037,185.76 × 421,671.45
  4. Step 4: Simplify right side
    691,464.03x = 437,351,621,230.20
  5. Step 5: Solve for x
    x = 437,351,621,230.20/691,464.03
  6. Step 6: Final answer
    x = 632,500.90

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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.