Home / 1,490,669.28-2,057,132.16-811,604.16

Finding the Fourth Proportional to 1,490,669.28, 2,057,132.16 and 811,604.16

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Solution

The fourth proportional to 1,490,669.28, 2,057,132.16 and 811,604.16 is: 1,120,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,669.28 : 2,057,132.16 = 811,604.16 : x
  2. Step 2: Convert to fraction form
    1,490,669.28/2,057,132.16 = 811,604.16/x
  3. Step 3: Cross multiply
    1,490,669.28x = 2,057,132.16 × 811,604.16
  4. Step 4: Simplify right side
    1,490,669.28x = 1,669,577,018,725.79
  5. Step 5: Solve for x
    x = 1,669,577,018,725.79/1,490,669.28
  6. Step 6: Final answer
    x = 1,120,018.40

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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.