Home / 1,391,762.76-1,920,679.88-1,327,989.84

Finding the Fourth Proportional to 1,391,762.76, 1,920,679.88 and 1,327,989.84

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Solution

The fourth proportional to 1,391,762.76, 1,920,679.88 and 1,327,989.84 is: 1,832,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,762.76 : 1,920,679.88 = 1,327,989.84 : x
  2. Step 2: Convert to fraction form
    1,391,762.76/1,920,679.88 = 1,327,989.84/x
  3. Step 3: Cross multiply
    1,391,762.76x = 1,920,679.88 × 1,327,989.84
  4. Step 4: Simplify right side
    1,391,762.76x = 2,550,643,360,159.86
  5. Step 5: Solve for x
    x = 2,550,643,360,159.86/1,391,762.76
  6. Step 6: Final answer
    x = 1,832,671.08

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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.