Home / 989,773.32-1,485,406.30-724,218.92

Finding the Fourth Proportional to 989,773.32, 1,485,406.30 and 724,218.92

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Solution

The fourth proportional to 989,773.32, 1,485,406.30 and 724,218.92 is: 1,086,874.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,773.32 : 1,485,406.30 = 724,218.92 : x
  2. Step 2: Convert to fraction form
    989,773.32/1,485,406.30 = 724,218.92/x
  3. Step 3: Cross multiply
    989,773.32x = 1,485,406.30 × 724,218.92
  4. Step 4: Simplify right side
    989,773.32x = 1,075,759,346,347.20
  5. Step 5: Solve for x
    x = 1,075,759,346,347.20/989,773.32
  6. Step 6: Final answer
    x = 1,086,874.46

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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.