Home / 1,391,595.45-2,087,393.18-831,723.45

Finding the Fourth Proportional to 1,391,595.45, 2,087,393.18 and 831,723.45

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Solution

The fourth proportional to 1,391,595.45, 2,087,393.18 and 831,723.45 is: 1,247,585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,595.45 : 2,087,393.18 = 831,723.45 : x
  2. Step 2: Convert to fraction form
    1,391,595.45/2,087,393.18 = 831,723.45/x
  3. Step 3: Cross multiply
    1,391,595.45x = 2,087,393.18 × 831,723.45
  4. Step 4: Simplify right side
    1,391,595.45x = 1,736,133,853,017.45
  5. Step 5: Solve for x
    x = 1,736,133,853,017.45/1,391,595.45
  6. Step 6: Final answer
    x = 1,247,585.18

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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.