Home / 1,201,489.71-1,658,858.51-711,616.76

Finding the Fourth Proportional to 1,201,489.71, 1,658,858.51 and 711,616.76

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Solution

The fourth proportional to 1,201,489.71, 1,658,858.51 and 711,616.76 is: 982,506.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,489.71 : 1,658,858.51 = 711,616.76 : x
  2. Step 2: Convert to fraction form
    1,201,489.71/1,658,858.51 = 711,616.76/x
  3. Step 3: Cross multiply
    1,201,489.71x = 1,658,858.51 × 711,616.76
  4. Step 4: Simplify right side
    1,201,489.71x = 1,180,471,506,332.25
  5. Step 5: Solve for x
    x = 1,180,471,506,332.25/1,201,489.71
  6. Step 6: Final answer
    x = 982,506.55

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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.