Home / 1,345,772.40-2,019,047.40-399,165.90

Finding the Fourth Proportional to 1,345,772.40, 2,019,047.40 and 399,165.90

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Solution

The fourth proportional to 1,345,772.40, 2,019,047.40 and 399,165.90 is: 598,864.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,772.40 : 2,019,047.40 = 399,165.90 : x
  2. Step 2: Convert to fraction form
    1,345,772.40/2,019,047.40 = 399,165.90/x
  3. Step 3: Cross multiply
    1,345,772.40x = 2,019,047.40 × 399,165.90
  4. Step 4: Simplify right side
    1,345,772.40x = 805,934,872,563.66
  5. Step 5: Solve for x
    x = 805,934,872,563.66/1,345,772.40
  6. Step 6: Final answer
    x = 598,864.17

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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.