Home / 1,390,887.18-2,086,330.77-759,456.54

Finding the Fourth Proportional to 1,390,887.18, 2,086,330.77 and 759,456.54

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Solution

The fourth proportional to 1,390,887.18, 2,086,330.77 and 759,456.54 is: 1,139,184.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,887.18 : 2,086,330.77 = 759,456.54 : x
  2. Step 2: Convert to fraction form
    1,390,887.18/2,086,330.77 = 759,456.54/x
  3. Step 3: Cross multiply
    1,390,887.18x = 2,086,330.77 × 759,456.54
  4. Step 4: Simplify right side
    1,390,887.18x = 1,584,477,547,879.74
  5. Step 5: Solve for x
    x = 1,584,477,547,879.74/1,390,887.18
  6. Step 6: Final answer
    x = 1,139,184.81

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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.