Home / 1,124,871.51-1,687,555.14-326,186.40

Finding the Fourth Proportional to 1,124,871.51, 1,687,555.14 and 326,186.40

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Solution

The fourth proportional to 1,124,871.51, 1,687,555.14 and 326,186.40 is: 489,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,871.51 : 1,687,555.14 = 326,186.40 : x
  2. Step 2: Convert to fraction form
    1,124,871.51/1,687,555.14 = 326,186.40/x
  3. Step 3: Cross multiply
    1,124,871.51x = 1,687,555.14 × 326,186.40
  4. Step 4: Simplify right side
    1,124,871.51x = 550,457,535,918.10
  5. Step 5: Solve for x
    x = 550,457,535,918.10/1,124,871.51
  6. Step 6: Final answer
    x = 489,351.48

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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.