Home / 2,679,140.80-4,018,711.20-906,212.80

Finding the Fourth Proportional to 2,679,140.80, 4,018,711.20 and 906,212.80

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Solution

The fourth proportional to 2,679,140.80, 4,018,711.20 and 906,212.80 is: 1,359,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679,140.80 : 4,018,711.20 = 906,212.80 : x
  2. Step 2: Convert to fraction form
    2,679,140.80/4,018,711.20 = 906,212.80/x
  3. Step 3: Cross multiply
    2,679,140.80x = 4,018,711.20 × 906,212.80
  4. Step 4: Simplify right side
    2,679,140.80x = 3,641,807,528,943.36
  5. Step 5: Solve for x
    x = 3,641,807,528,943.36/2,679,140.80
  6. Step 6: Final answer
    x = 1,359,319.20

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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.