Home / 691,448.80-1,037,173.20-649,458.40

Finding the Fourth Proportional to 691,448.80, 1,037,173.20 and 649,458.40

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Solution

The fourth proportional to 691,448.80, 1,037,173.20 and 649,458.40 is: 974,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,448.80 : 1,037,173.20 = 649,458.40 : x
  2. Step 2: Convert to fraction form
    691,448.80/1,037,173.20 = 649,458.40/x
  3. Step 3: Cross multiply
    691,448.80x = 1,037,173.20 × 649,458.40
  4. Step 4: Simplify right side
    691,448.80x = 673,600,846,994.88
  5. Step 5: Solve for x
    x = 673,600,846,994.88/691,448.80
  6. Step 6: Final answer
    x = 974,187.60

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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.