Home / 1,490,981.64-2,057,500.34-811,903.24

Finding the Fourth Proportional to 1,490,981.64, 2,057,500.34 and 811,903.24

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Solution

The fourth proportional to 1,490,981.64, 2,057,500.34 and 811,903.24 is: 1,120,396.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,981.64 : 2,057,500.34 = 811,903.24 : x
  2. Step 2: Convert to fraction form
    1,490,981.64/2,057,500.34 = 811,903.24/x
  3. Step 3: Cross multiply
    1,490,981.64x = 2,057,500.34 × 811,903.24
  4. Step 4: Simplify right side
    1,490,981.64x = 1,670,491,192,347.10
  5. Step 5: Solve for x
    x = 1,670,491,192,347.10/1,490,981.64
  6. Step 6: Final answer
    x = 1,120,396.89

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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.