Home / 878,607.60-1,212,540.12-496,637.52

Finding the Fourth Proportional to 878,607.60, 1,212,540.12 and 496,637.52

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Solution

The fourth proportional to 878,607.60, 1,212,540.12 and 496,637.52 is: 685,394.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,607.60 : 1,212,540.12 = 496,637.52 : x
  2. Step 2: Convert to fraction form
    878,607.60/1,212,540.12 = 496,637.52/x
  3. Step 3: Cross multiply
    878,607.60x = 1,212,540.12 × 496,637.52
  4. Step 4: Simplify right side
    878,607.60x = 602,192,918,097.30
  5. Step 5: Solve for x
    x = 602,192,918,097.30/878,607.60
  6. Step 6: Final answer
    x = 685,394.62

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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.