Home / 1,490,460.12-2,056,831.92-811,401.48

Finding the Fourth Proportional to 1,490,460.12, 2,056,831.92 and 811,401.48

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Solution

The fourth proportional to 1,490,460.12, 2,056,831.92 and 811,401.48 is: 1,119,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,460.12 : 2,056,831.92 = 811,401.48 : x
  2. Step 2: Convert to fraction form
    1,490,460.12/2,056,831.92 = 811,401.48/x
  3. Step 3: Cross multiply
    1,490,460.12x = 2,056,831.92 × 811,401.48
  4. Step 4: Simplify right side
    1,490,460.12x = 1,668,916,463,999.24
  5. Step 5: Solve for x
    x = 1,668,916,463,999.24/1,490,460.12
  6. Step 6: Final answer
    x = 1,119,732.38

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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.