Home / 657,629.50-983,594.54-387,113.09

Finding the Fourth Proportional to 657,629.50, 983,594.54 and 387,113.09

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Solution

The fourth proportional to 657,629.50, 983,594.54 and 387,113.09 is: 578,992.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,629.50 : 983,594.54 = 387,113.09 : x
  2. Step 2: Convert to fraction form
    657,629.50/983,594.54 = 387,113.09/x
  3. Step 3: Cross multiply
    657,629.50x = 983,594.54 × 387,113.09
  4. Step 4: Simplify right side
    657,629.50x = 380,762,322,209.95
  5. Step 5: Solve for x
    x = 380,762,322,209.95/657,629.50
  6. Step 6: Final answer
    x = 578,992.16

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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.