Home / 1,090,613.70-1,635,920.55-618,221.70

Finding the Fourth Proportional to 1,090,613.70, 1,635,920.55 and 618,221.70

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Solution

The fourth proportional to 1,090,613.70, 1,635,920.55 and 618,221.70 is: 927,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,613.70 : 1,635,920.55 = 618,221.70 : x
  2. Step 2: Convert to fraction form
    1,090,613.70/1,635,920.55 = 618,221.70/x
  3. Step 3: Cross multiply
    1,090,613.70x = 1,635,920.55 × 618,221.70
  4. Step 4: Simplify right side
    1,090,613.70x = 1,011,361,583,485.94
  5. Step 5: Solve for x
    x = 1,011,361,583,485.94/1,090,613.70
  6. Step 6: Final answer
    x = 927,332.55

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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.