Home / 764,603.20-1,146,904.80-391,355.20

Finding the Fourth Proportional to 764,603.20, 1,146,904.80 and 391,355.20

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Solution

The fourth proportional to 764,603.20, 1,146,904.80 and 391,355.20 is: 587,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,603.20 : 1,146,904.80 = 391,355.20 : x
  2. Step 2: Convert to fraction form
    764,603.20/1,146,904.80 = 391,355.20/x
  3. Step 3: Cross multiply
    764,603.20x = 1,146,904.80 × 391,355.20
  4. Step 4: Simplify right side
    764,603.20x = 448,847,157,384.96
  5. Step 5: Solve for x
    x = 448,847,157,384.96/764,603.20
  6. Step 6: Final answer
    x = 587,032.80

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Similar ratio
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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.