Home / 1,245,007.40-1,867,511.10-906,459.80

Finding the Fourth Proportional to 1,245,007.40, 1,867,511.10 and 906,459.80

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Solution

The fourth proportional to 1,245,007.40, 1,867,511.10 and 906,459.80 is: 1,359,689.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,007.40 : 1,867,511.10 = 906,459.80 : x
  2. Step 2: Convert to fraction form
    1,245,007.40/1,867,511.10 = 906,459.80/x
  3. Step 3: Cross multiply
    1,245,007.40x = 1,867,511.10 × 906,459.80
  4. Step 4: Simplify right side
    1,245,007.40x = 1,692,823,738,203.78
  5. Step 5: Solve for x
    x = 1,692,823,738,203.78/1,245,007.40
  6. Step 6: Final answer
    x = 1,359,689.70

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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.