Home / 1,990,142.39-2,746,404.63-1,130,749.81

Finding the Fourth Proportional to 1,990,142.39, 2,746,404.63 and 1,130,749.81

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Solution

The fourth proportional to 1,990,142.39, 2,746,404.63 and 1,130,749.81 is: 1,560,439.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,142.39 : 2,746,404.63 = 1,130,749.81 : x
  2. Step 2: Convert to fraction form
    1,990,142.39/2,746,404.63 = 1,130,749.81/x
  3. Step 3: Cross multiply
    1,990,142.39x = 2,746,404.63 × 1,130,749.81
  4. Step 4: Simplify right side
    1,990,142.39x = 3,105,496,506,689.61
  5. Step 5: Solve for x
    x = 3,105,496,506,689.61/1,990,142.39
  6. Step 6: Final answer
    x = 1,560,439.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.