Home / 1,820,909.79-2,512,855.64-1,005,113.70

Finding the Fourth Proportional to 1,820,909.79, 2,512,855.64 and 1,005,113.70

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Solution

The fourth proportional to 1,820,909.79, 2,512,855.64 and 1,005,113.70 is: 1,387,056.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,909.79 : 2,512,855.64 = 1,005,113.70 : x
  2. Step 2: Convert to fraction form
    1,820,909.79/2,512,855.64 = 1,005,113.70/x
  3. Step 3: Cross multiply
    1,820,909.79x = 2,512,855.64 × 1,005,113.70
  4. Step 4: Simplify right side
    1,820,909.79x = 2,525,705,629,886.27
  5. Step 5: Solve for x
    x = 2,525,705,629,886.27/1,820,909.79
  6. Step 6: Final answer
    x = 1,387,056.98

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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.