Home / 1,490,484.30-2,056,876.11-811,425.66

Finding the Fourth Proportional to 1,490,484.30, 2,056,876.11 and 811,425.66

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Solution

The fourth proportional to 1,490,484.30, 2,056,876.11 and 811,425.66 is: 1,119,771.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,484.30 : 2,056,876.11 = 811,425.66 : x
  2. Step 2: Convert to fraction form
    1,490,484.30/2,056,876.11 = 811,425.66/x
  3. Step 3: Cross multiply
    1,490,484.30x = 2,056,876.11 × 811,425.66
  4. Step 4: Simplify right side
    1,490,484.30x = 1,669,002,055,094.98
  5. Step 5: Solve for x
    x = 1,669,002,055,094.98/1,490,484.30
  6. Step 6: Final answer
    x = 1,119,771.64

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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.