Home / 1,230,290.67-1,697,798.78-686,394.12

Finding the Fourth Proportional to 1,230,290.67, 1,697,798.78 and 686,394.12

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Solution

The fourth proportional to 1,230,290.67, 1,697,798.78 and 686,394.12 is: 947,222.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,290.67 : 1,697,798.78 = 686,394.12 : x
  2. Step 2: Convert to fraction form
    1,230,290.67/1,697,798.78 = 686,394.12/x
  3. Step 3: Cross multiply
    1,230,290.67x = 1,697,798.78 × 686,394.12
  4. Step 4: Simplify right side
    1,230,290.67x = 1,165,359,096,103.20
  5. Step 5: Solve for x
    x = 1,165,359,096,103.20/1,230,290.67
  6. Step 6: Final answer
    x = 947,222.57

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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.