Home / 1,373,428.80-2,060,456.40-426,895.20

Finding the Fourth Proportional to 1,373,428.80, 2,060,456.40 and 426,895.20

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Solution

The fourth proportional to 1,373,428.80, 2,060,456.40 and 426,895.20 is: 640,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,428.80 : 2,060,456.40 = 426,895.20 : x
  2. Step 2: Convert to fraction form
    1,373,428.80/2,060,456.40 = 426,895.20/x
  3. Step 3: Cross multiply
    1,373,428.80x = 2,060,456.40 × 426,895.20
  4. Step 4: Simplify right side
    1,373,428.80x = 879,598,946,969.28
  5. Step 5: Solve for x
    x = 879,598,946,969.28/1,373,428.80
  6. Step 6: Final answer
    x = 640,440.15

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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.