Home / 1,205,000.48-1,662,917.64-661,126.40

Finding the Fourth Proportional to 1,205,000.48, 1,662,917.64 and 661,126.40

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Solution

The fourth proportional to 1,205,000.48, 1,662,917.64 and 661,126.40 is: 912,363.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,000.48 : 1,662,917.64 = 661,126.40 : x
  2. Step 2: Convert to fraction form
    1,205,000.48/1,662,917.64 = 661,126.40/x
  3. Step 3: Cross multiply
    1,205,000.48x = 1,662,917.64 × 661,126.40
  4. Step 4: Simplify right side
    1,205,000.48x = 1,099,398,752,829.70
  5. Step 5: Solve for x
    x = 1,099,398,752,829.70/1,205,000.48
  6. Step 6: Final answer
    x = 912,363.75

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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.