Home / 1,425,781.76-2,142,017.28-1,345,079.84

Finding the Fourth Proportional to 1,425,781.76, 2,142,017.28 and 1,345,079.84

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Solution

The fourth proportional to 1,425,781.76, 2,142,017.28 and 1,345,079.84 is: 2,020,775.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,781.76 : 2,142,017.28 = 1,345,079.84 : x
  2. Step 2: Convert to fraction form
    1,425,781.76/2,142,017.28 = 1,345,079.84/x
  3. Step 3: Cross multiply
    1,425,781.76x = 2,142,017.28 × 1,345,079.84
  4. Step 4: Simplify right side
    1,425,781.76x = 2,881,184,260,259.64
  5. Step 5: Solve for x
    x = 2,881,184,260,259.64/1,425,781.76
  6. Step 6: Final answer
    x = 2,020,775.09

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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.