Home / 1,337,643.20-2,006,464.80-439,223.60

Finding the Fourth Proportional to 1,337,643.20, 2,006,464.80 and 439,223.60

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Solution

The fourth proportional to 1,337,643.20, 2,006,464.80 and 439,223.60 is: 658,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337,643.20 : 2,006,464.80 = 439,223.60 : x
  2. Step 2: Convert to fraction form
    1,337,643.20/2,006,464.80 = 439,223.60/x
  3. Step 3: Cross multiply
    1,337,643.20x = 2,006,464.80 × 439,223.60
  4. Step 4: Simplify right side
    1,337,643.20x = 881,286,692,729.28
  5. Step 5: Solve for x
    x = 881,286,692,729.28/1,337,643.20
  6. Step 6: Final answer
    x = 658,835.40

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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.