Home / 878,952.50-1,212,920.78-496,987.28

Finding the Fourth Proportional to 878,952.50, 1,212,920.78 and 496,987.28

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Solution

The fourth proportional to 878,952.50, 1,212,920.78 and 496,987.28 is: 685,823.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,952.50 : 1,212,920.78 = 496,987.28 : x
  2. Step 2: Convert to fraction form
    878,952.50/1,212,920.78 = 496,987.28/x
  3. Step 3: Cross multiply
    878,952.50x = 1,212,920.78 × 496,987.28
  4. Step 4: Simplify right side
    878,952.50x = 602,806,199,307.68
  5. Step 5: Solve for x
    x = 602,806,199,307.68/878,952.50
  6. Step 6: Final answer
    x = 685,823.41

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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.