Home / 1,109,705.40-1,661,605.65-708,172.20

Finding the Fourth Proportional to 1,109,705.40, 1,661,605.65 and 708,172.20

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Solution

The fourth proportional to 1,109,705.40, 1,661,605.65 and 708,172.20 is: 1,060,374.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,705.40 : 1,661,605.65 = 708,172.20 : x
  2. Step 2: Convert to fraction form
    1,109,705.40/1,661,605.65 = 708,172.20/x
  3. Step 3: Cross multiply
    1,109,705.40x = 1,661,605.65 × 708,172.20
  4. Step 4: Simplify right side
    1,109,705.40x = 1,176,702,928,692.93
  5. Step 5: Solve for x
    x = 1,176,702,928,692.93/1,109,705.40
  6. Step 6: Final answer
    x = 1,060,374.16

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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.