Home / 1,500,939.47-2,071,313.17-812,626.32

Finding the Fourth Proportional to 1,500,939.47, 2,071,313.17 and 812,626.32

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Solution

The fourth proportional to 1,500,939.47, 2,071,313.17 and 812,626.32 is: 1,121,433.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,939.47 : 2,071,313.17 = 812,626.32 : x
  2. Step 2: Convert to fraction form
    1,500,939.47/2,071,313.17 = 812,626.32/x
  3. Step 3: Cross multiply
    1,500,939.47x = 2,071,313.17 × 812,626.32
  4. Step 4: Simplify right side
    1,500,939.47x = 1,683,203,604,640.49
  5. Step 5: Solve for x
    x = 1,683,203,604,640.49/1,500,939.47
  6. Step 6: Final answer
    x = 1,121,433.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.