Home / 808,657.60-1,212,986.40-539,219.20

Finding the Fourth Proportional to 808,657.60, 1,212,986.40 and 539,219.20

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Solution

The fourth proportional to 808,657.60, 1,212,986.40 and 539,219.20 is: 808,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,657.60 : 1,212,986.40 = 539,219.20 : x
  2. Step 2: Convert to fraction form
    808,657.60/1,212,986.40 = 539,219.20/x
  3. Step 3: Cross multiply
    808,657.60x = 1,212,986.40 × 539,219.20
  4. Step 4: Simplify right side
    808,657.60x = 654,065,556,218.88
  5. Step 5: Solve for x
    x = 654,065,556,218.88/808,657.60
  6. Step 6: Final answer
    x = 808,828.80

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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.