Home / 857,973.90-1,181,731.14-639,482.40

Finding the Fourth Proportional to 857,973.90, 1,181,731.14 and 639,482.40

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Solution

The fourth proportional to 857,973.90, 1,181,731.14 and 639,482.40 is: 880,791.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,973.90 : 1,181,731.14 = 639,482.40 : x
  2. Step 2: Convert to fraction form
    857,973.90/1,181,731.14 = 639,482.40/x
  3. Step 3: Cross multiply
    857,973.90x = 1,181,731.14 × 639,482.40
  4. Step 4: Simplify right side
    857,973.90x = 755,696,265,561.94
  5. Step 5: Solve for x
    x = 755,696,265,561.94/857,973.90
  6. Step 6: Final answer
    x = 880,791.67

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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.