Home / 672,280.35-1,008,420.53-520,065.15

Finding the Fourth Proportional to 672,280.35, 1,008,420.53 and 520,065.15

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Solution

The fourth proportional to 672,280.35, 1,008,420.53 and 520,065.15 is: 780,097.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,280.35 : 1,008,420.53 = 520,065.15 : x
  2. Step 2: Convert to fraction form
    672,280.35/1,008,420.53 = 520,065.15/x
  3. Step 3: Cross multiply
    672,280.35x = 1,008,420.53 × 520,065.15
  4. Step 4: Simplify right side
    672,280.35x = 524,444,374,197.53
  5. Step 5: Solve for x
    x = 524,444,374,197.53/672,280.35
  6. Step 6: Final answer
    x = 780,097.73

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Double scale
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Similar ratio
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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.