Home / 1,222,430.89-1,686,923.51-671,143.87

Finding the Fourth Proportional to 1,222,430.89, 1,686,923.51 and 671,143.87

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Solution

The fourth proportional to 1,222,430.89, 1,686,923.51 and 671,143.87 is: 926,161.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,430.89 : 1,686,923.51 = 671,143.87 : x
  2. Step 2: Convert to fraction form
    1,222,430.89/1,686,923.51 = 671,143.87/x
  3. Step 3: Cross multiply
    1,222,430.89x = 1,686,923.51 × 671,143.87
  4. Step 4: Simplify right side
    1,222,430.89x = 1,132,168,372,895.38
  5. Step 5: Solve for x
    x = 1,132,168,372,895.38/1,222,430.89
  6. Step 6: Final answer
    x = 926,161.46

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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.