Home / 1,500,099.40-2,070,142.61-811,771.19

Finding the Fourth Proportional to 1,500,099.40, 2,070,142.61 and 811,771.19

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Solution

The fourth proportional to 1,500,099.40, 2,070,142.61 and 811,771.19 is: 1,120,247.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,099.40 : 2,070,142.61 = 811,771.19 : x
  2. Step 2: Convert to fraction form
    1,500,099.40/2,070,142.61 = 811,771.19/x
  3. Step 3: Cross multiply
    1,500,099.40x = 2,070,142.61 × 811,771.19
  4. Step 4: Simplify right side
    1,500,099.40x = 1,680,482,115,579.84
  5. Step 5: Solve for x
    x = 1,680,482,115,579.84/1,500,099.40
  6. Step 6: Final answer
    x = 1,120,247.18

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Why These Related Problems?

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