Home / 1,115,370.81-1,539,206.55-631,934.87

Finding the Fourth Proportional to 1,115,370.81, 1,539,206.55 and 631,934.87

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Solution

The fourth proportional to 1,115,370.81, 1,539,206.55 and 631,934.87 is: 872,067.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,370.81 : 1,539,206.55 = 631,934.87 : x
  2. Step 2: Convert to fraction form
    1,115,370.81/1,539,206.55 = 631,934.87/x
  3. Step 3: Cross multiply
    1,115,370.81x = 1,539,206.55 × 631,934.87
  4. Step 4: Simplify right side
    1,115,370.81x = 972,678,283,381.37
  5. Step 5: Solve for x
    x = 972,678,283,381.37/1,115,370.81
  6. Step 6: Final answer
    x = 872,067.19

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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.