Home / 1,230,199.10-1,697,675.81-686,334.97

Finding the Fourth Proportional to 1,230,199.10, 1,697,675.81 and 686,334.97

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Solution

The fourth proportional to 1,230,199.10, 1,697,675.81 and 686,334.97 is: 947,142.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,199.10 : 1,697,675.81 = 686,334.97 : x
  2. Step 2: Convert to fraction form
    1,230,199.10/1,697,675.81 = 686,334.97/x
  3. Step 3: Cross multiply
    1,230,199.10x = 1,697,675.81 × 686,334.97
  4. Step 4: Simplify right side
    1,230,199.10x = 1,165,174,281,250.89
  5. Step 5: Solve for x
    x = 1,165,174,281,250.89/1,230,199.10
  6. Step 6: Final answer
    x = 947,142.85

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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.