Home / 878,968.12-1,212,969.30-497,008.48

Finding the Fourth Proportional to 878,968.12, 1,212,969.30 and 497,008.48

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Solution

The fourth proportional to 878,968.12, 1,212,969.30 and 497,008.48 is: 685,867.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,968.12 : 1,212,969.30 = 497,008.48 : x
  2. Step 2: Convert to fraction form
    878,968.12/1,212,969.30 = 497,008.48/x
  3. Step 3: Cross multiply
    878,968.12x = 1,212,969.30 × 497,008.48
  4. Step 4: Simplify right side
    878,968.12x = 602,856,028,079.66
  5. Step 5: Solve for x
    x = 602,856,028,079.66/878,968.12
  6. Step 6: Final answer
    x = 685,867.91

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1.5x scale

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.