Home / 831,925.80-1,247,888.70-270,960.30

Finding the Fourth Proportional to 831,925.80, 1,247,888.70 and 270,960.30

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Solution

The fourth proportional to 831,925.80, 1,247,888.70 and 270,960.30 is: 406,440.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,925.80 : 1,247,888.70 = 270,960.30 : x
  2. Step 2: Convert to fraction form
    831,925.80/1,247,888.70 = 270,960.30/x
  3. Step 3: Cross multiply
    831,925.80x = 1,247,888.70 × 270,960.30
  4. Step 4: Simplify right side
    831,925.80x = 338,128,296,518.61
  5. Step 5: Solve for x
    x = 338,128,296,518.61/831,925.80
  6. Step 6: Final answer
    x = 406,440.45

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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.