Home / 831,350.73-1,247,355.50-432,243.21

Finding the Fourth Proportional to 831,350.73, 1,247,355.50 and 432,243.21

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Solution

The fourth proportional to 831,350.73, 1,247,355.50 and 432,243.21 is: 648,536.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,350.73 : 1,247,355.50 = 432,243.21 : x
  2. Step 2: Convert to fraction form
    831,350.73/1,247,355.50 = 432,243.21/x
  3. Step 3: Cross multiply
    831,350.73x = 1,247,355.50 × 432,243.21
  4. Step 4: Simplify right side
    831,350.73x = 539,160,943,169.94
  5. Step 5: Solve for x
    x = 539,160,943,169.94/831,350.73
  6. Step 6: Final answer
    x = 648,536.08

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Double scale
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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.