Home / 2,520,100.40-3,779,713.20-921,840.80

Finding the Fourth Proportional to 2,520,100.40, 3,779,713.20 and 921,840.80

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Solution

The fourth proportional to 2,520,100.40, 3,779,713.20 and 921,840.80 is: 1,382,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520,100.40 : 3,779,713.20 = 921,840.80 : x
  2. Step 2: Convert to fraction form
    2,520,100.40/3,779,713.20 = 921,840.80/x
  3. Step 3: Cross multiply
    2,520,100.40x = 3,779,713.20 × 921,840.80
  4. Step 4: Simplify right side
    2,520,100.40x = 3,484,293,840,058.56
  5. Step 5: Solve for x
    x = 3,484,293,840,058.56/2,520,100.40
  6. Step 6: Final answer
    x = 1,382,601.20

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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.