Home / 831,572.04-1,247,347.10-200,480.78

Finding the Fourth Proportional to 831,572.04, 1,247,347.10 and 200,480.78

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Solution

The fourth proportional to 831,572.04, 1,247,347.10 and 200,480.78 is: 300,718.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,572.04 : 1,247,347.10 = 200,480.78 : x
  2. Step 2: Convert to fraction form
    831,572.04/1,247,347.10 = 200,480.78/x
  3. Step 3: Cross multiply
    831,572.04x = 1,247,347.10 × 200,480.78
  4. Step 4: Simplify right side
    831,572.04x = 250,069,119,538.74
  5. Step 5: Solve for x
    x = 250,069,119,538.74/831,572.04
  6. Step 6: Final answer
    x = 300,718.53

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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.