Home / 1,393,166.64-1,922,457.98-772,991.76

Finding the Fourth Proportional to 1,393,166.64, 1,922,457.98 and 772,991.76

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Solution

The fourth proportional to 1,393,166.64, 1,922,457.98 and 772,991.76 is: 1,066,666.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,166.64 : 1,922,457.98 = 772,991.76 : x
  2. Step 2: Convert to fraction form
    1,393,166.64/1,922,457.98 = 772,991.76/x
  3. Step 3: Cross multiply
    1,393,166.64x = 1,922,457.98 × 772,991.76
  4. Step 4: Simplify right side
    1,393,166.64x = 1,486,044,177,486.25
  5. Step 5: Solve for x
    x = 1,486,044,177,486.25/1,393,166.64
  6. Step 6: Final answer
    x = 1,066,666.50

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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.