Home / 878,950.50-1,212,918.03-496,985.28

Finding the Fourth Proportional to 878,950.50, 1,212,918.03 and 496,985.28

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Solution

The fourth proportional to 878,950.50, 1,212,918.03 and 496,985.28 is: 685,820.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,950.50 : 1,212,918.03 = 496,985.28 : x
  2. Step 2: Convert to fraction form
    878,950.50/1,212,918.03 = 496,985.28/x
  3. Step 3: Cross multiply
    878,950.50x = 1,212,918.03 × 496,985.28
  4. Step 4: Simplify right side
    878,950.50x = 602,802,406,756.60
  5. Step 5: Solve for x
    x = 602,802,406,756.60/878,950.50
  6. Step 6: Final answer
    x = 685,820.65

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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.