Home / 2,378,637.88-3,282,521.96-1,290,909.20

Finding the Fourth Proportional to 2,378,637.88, 3,282,521.96 and 1,290,909.20

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Solution

The fourth proportional to 2,378,637.88, 3,282,521.96 and 1,290,909.20 is: 1,781,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378,637.88 : 3,282,521.96 = 1,290,909.20 : x
  2. Step 2: Convert to fraction form
    2,378,637.88/3,282,521.96 = 1,290,909.20/x
  3. Step 3: Cross multiply
    2,378,637.88x = 3,282,521.96 × 1,290,909.20
  4. Step 4: Simplify right side
    2,378,637.88x = 4,237,437,774,498.88
  5. Step 5: Solve for x
    x = 4,237,437,774,498.88/2,378,637.88
  6. Step 6: Final answer
    x = 1,781,455.60

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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.