Home / 1,070,539.80-1,605,809.70-439,243.80

Finding the Fourth Proportional to 1,070,539.80, 1,605,809.70 and 439,243.80

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Solution

The fourth proportional to 1,070,539.80, 1,605,809.70 and 439,243.80 is: 658,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,539.80 : 1,605,809.70 = 439,243.80 : x
  2. Step 2: Convert to fraction form
    1,070,539.80/1,605,809.70 = 439,243.80/x
  3. Step 3: Cross multiply
    1,070,539.80x = 1,605,809.70 × 439,243.80
  4. Step 4: Simplify right side
    1,070,539.80x = 705,341,954,704.86
  5. Step 5: Solve for x
    x = 705,341,954,704.86/1,070,539.80
  6. Step 6: Final answer
    x = 658,865.70

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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.