Home / 1,418,083.32-2,127,123.90-420,811.32

Finding the Fourth Proportional to 1,418,083.32, 2,127,123.90 and 420,811.32

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Solution

The fourth proportional to 1,418,083.32, 2,127,123.90 and 420,811.32 is: 631,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,083.32 : 2,127,123.90 = 420,811.32 : x
  2. Step 2: Convert to fraction form
    1,418,083.32/2,127,123.90 = 420,811.32/x
  3. Step 3: Cross multiply
    1,418,083.32x = 2,127,123.90 × 420,811.32
  4. Step 4: Simplify right side
    1,418,083.32x = 895,117,816,162.55
  5. Step 5: Solve for x
    x = 895,117,816,162.55/1,418,083.32
  6. Step 6: Final answer
    x = 631,216.66

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.