Home / 2,805,990.96-4,209,064.86-912,732.40

Finding the Fourth Proportional to 2,805,990.96, 4,209,064.86 and 912,732.40

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Solution

The fourth proportional to 2,805,990.96, 4,209,064.86 and 912,732.40 is: 1,369,124.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805,990.96 : 4,209,064.86 = 912,732.40 : x
  2. Step 2: Convert to fraction form
    2,805,990.96/4,209,064.86 = 912,732.40/x
  3. Step 3: Cross multiply
    2,805,990.96x = 4,209,064.86 × 912,732.40
  4. Step 4: Simplify right side
    2,805,990.96x = 3,841,749,880,107.54
  5. Step 5: Solve for x
    x = 3,841,749,880,107.54/2,805,990.96
  6. Step 6: Final answer
    x = 1,369,124.11

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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.