Home / 1,407,209.73-1,942,157.88-891,011.61

Finding the Fourth Proportional to 1,407,209.73, 1,942,157.88 and 891,011.61

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Solution

The fourth proportional to 1,407,209.73, 1,942,157.88 and 891,011.61 is: 1,229,728.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,209.73 : 1,942,157.88 = 891,011.61 : x
  2. Step 2: Convert to fraction form
    1,407,209.73/1,942,157.88 = 891,011.61/x
  3. Step 3: Cross multiply
    1,407,209.73x = 1,942,157.88 × 891,011.61
  4. Step 4: Simplify right side
    1,407,209.73x = 1,730,485,219,532.99
  5. Step 5: Solve for x
    x = 1,730,485,219,532.99/1,407,209.73
  6. Step 6: Final answer
    x = 1,229,728.01

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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.