Home / 1,403,808.60-2,105,712.90-806,611.80

Finding the Fourth Proportional to 1,403,808.60, 2,105,712.90 and 806,611.80

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Solution

The fourth proportional to 1,403,808.60, 2,105,712.90 and 806,611.80 is: 1,209,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,808.60 : 2,105,712.90 = 806,611.80 : x
  2. Step 2: Convert to fraction form
    1,403,808.60/2,105,712.90 = 806,611.80/x
  3. Step 3: Cross multiply
    1,403,808.60x = 2,105,712.90 × 806,611.80
  4. Step 4: Simplify right side
    1,403,808.60x = 1,698,492,872,552.22
  5. Step 5: Solve for x
    x = 1,698,492,872,552.22/1,403,808.60
  6. Step 6: Final answer
    x = 1,209,917.70

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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.