Home / 1,207,147.98-1,666,009.05-723,978.93

Finding the Fourth Proportional to 1,207,147.98, 1,666,009.05 and 723,978.93

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Solution

The fourth proportional to 1,207,147.98, 1,666,009.05 and 723,978.93 is: 999,177.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,147.98 : 1,666,009.05 = 723,978.93 : x
  2. Step 2: Convert to fraction form
    1,207,147.98/1,666,009.05 = 723,978.93/x
  3. Step 3: Cross multiply
    1,207,147.98x = 1,666,009.05 × 723,978.93
  4. Step 4: Simplify right side
    1,207,147.98x = 1,206,155,443,550.63
  5. Step 5: Solve for x
    x = 1,206,155,443,550.63/1,207,147.98
  6. Step 6: Final answer
    x = 999,177.79

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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.