Home / 763,977.60-1,147,190.40-607,507.20

Finding the Fourth Proportional to 763,977.60, 1,147,190.40 and 607,507.20

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Solution

The fourth proportional to 763,977.60, 1,147,190.40 and 607,507.20 is: 912,234.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,977.60 : 1,147,190.40 = 607,507.20 : x
  2. Step 2: Convert to fraction form
    763,977.60/1,147,190.40 = 607,507.20/x
  3. Step 3: Cross multiply
    763,977.60x = 1,147,190.40 × 607,507.20
  4. Step 4: Simplify right side
    763,977.60x = 696,926,427,770.88
  5. Step 5: Solve for x
    x = 696,926,427,770.88/763,977.60
  6. Step 6: Final answer
    x = 912,234.11

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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.