Home / 810,574.40-1,216,552.80-361,985.60

Finding the Fourth Proportional to 810,574.40, 1,216,552.80 and 361,985.60

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Solution

The fourth proportional to 810,574.40, 1,216,552.80 and 361,985.60 is: 543,287.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,574.40 : 1,216,552.80 = 361,985.60 : x
  2. Step 2: Convert to fraction form
    810,574.40/1,216,552.80 = 361,985.60/x
  3. Step 3: Cross multiply
    810,574.40x = 1,216,552.80 × 361,985.60
  4. Step 4: Simplify right side
    810,574.40x = 440,374,595,239.68
  5. Step 5: Solve for x
    x = 440,374,595,239.68/810,574.40
  6. Step 6: Final answer
    x = 543,287.08

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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.