Home / 1,917,849.60-2,872,972.80-1,681,459.20

Finding the Fourth Proportional to 1,917,849.60, 2,872,972.80 and 1,681,459.20

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Solution

The fourth proportional to 1,917,849.60, 2,872,972.80 and 1,681,459.20 is: 2,518,855.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,849.60 : 2,872,972.80 = 1,681,459.20 : x
  2. Step 2: Convert to fraction form
    1,917,849.60/2,872,972.80 = 1,681,459.20/x
  3. Step 3: Cross multiply
    1,917,849.60x = 2,872,972.80 × 1,681,459.20
  4. Step 4: Simplify right side
    1,917,849.60x = 4,830,786,545,909.76
  5. Step 5: Solve for x
    x = 4,830,786,545,909.76/1,917,849.60
  6. Step 6: Final answer
    x = 2,518,855.78

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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.