Home / 1,990,530.40-2,985,212.40-710,989.60

Finding the Fourth Proportional to 1,990,530.40, 2,985,212.40 and 710,989.60

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Solution

The fourth proportional to 1,990,530.40, 2,985,212.40 and 710,989.60 is: 1,066,276.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,530.40 : 2,985,212.40 = 710,989.60 : x
  2. Step 2: Convert to fraction form
    1,990,530.40/2,985,212.40 = 710,989.60/x
  3. Step 3: Cross multiply
    1,990,530.40x = 2,985,212.40 × 710,989.60
  4. Step 4: Simplify right side
    1,990,530.40x = 2,122,454,970,191.04
  5. Step 5: Solve for x
    x = 2,122,454,970,191.04/1,990,530.40
  6. Step 6: Final answer
    x = 1,066,276.09

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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.