Home / 991,570.60-1,485,606.30-813,111.40

Finding the Fourth Proportional to 991,570.60, 1,485,606.30 and 813,111.40

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Solution

The fourth proportional to 991,570.60, 1,485,606.30 and 813,111.40 is: 1,218,232.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,570.60 : 1,485,606.30 = 813,111.40 : x
  2. Step 2: Convert to fraction form
    991,570.60/1,485,606.30 = 813,111.40/x
  3. Step 3: Cross multiply
    991,570.60x = 1,485,606.30 × 813,111.40
  4. Step 4: Simplify right side
    991,570.60x = 1,207,963,418,441.82
  5. Step 5: Solve for x
    x = 1,207,963,418,441.82/991,570.60
  6. Step 6: Final answer
    x = 1,218,232.39

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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.