Home / 1,143,913.34-1,578,740.40-660,477.68

Finding the Fourth Proportional to 1,143,913.34, 1,578,740.40 and 660,477.68

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Solution

The fourth proportional to 1,143,913.34, 1,578,740.40 and 660,477.68 is: 911,540.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,913.34 : 1,578,740.40 = 660,477.68 : x
  2. Step 2: Convert to fraction form
    1,143,913.34/1,578,740.40 = 660,477.68/x
  3. Step 3: Cross multiply
    1,143,913.34x = 1,578,740.40 × 660,477.68
  4. Step 4: Simplify right side
    1,143,913.34x = 1,042,722,788,820.57
  5. Step 5: Solve for x
    x = 1,042,722,788,820.57/1,143,913.34
  6. Step 6: Final answer
    x = 911,540.02

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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.