Home / 1,490,486.55-2,056,879.22-811,427.91

Finding the Fourth Proportional to 1,490,486.55, 2,056,879.22 and 811,427.91

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Solution

The fourth proportional to 1,490,486.55, 2,056,879.22 and 811,427.91 is: 1,119,774.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,486.55 : 2,056,879.22 = 811,427.91 : x
  2. Step 2: Convert to fraction form
    1,490,486.55/2,056,879.22 = 811,427.91/x
  3. Step 3: Cross multiply
    1,490,486.55x = 2,056,879.22 × 811,427.91
  4. Step 4: Simplify right side
    1,490,486.55x = 1,669,009,202,549.89
  5. Step 5: Solve for x
    x = 1,669,009,202,549.89/1,490,486.55
  6. Step 6: Final answer
    x = 1,119,774.75

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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.