Home / 1,485,807.40-2,228,711.10-420,835.60

Finding the Fourth Proportional to 1,485,807.40, 2,228,711.10 and 420,835.60

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Solution

The fourth proportional to 1,485,807.40, 2,228,711.10 and 420,835.60 is: 631,253.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,807.40 : 2,228,711.10 = 420,835.60 : x
  2. Step 2: Convert to fraction form
    1,485,807.40/2,228,711.10 = 420,835.60/x
  3. Step 3: Cross multiply
    1,485,807.40x = 2,228,711.10 × 420,835.60
  4. Step 4: Simplify right side
    1,485,807.40x = 937,920,972,995.16
  5. Step 5: Solve for x
    x = 937,920,972,995.16/1,485,807.40
  6. Step 6: Final answer
    x = 631,253.40

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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.