Home / 439,643.36-659,464.02-288,792.65

Finding the Fourth Proportional to 439,643.36, 659,464.02 and 288,792.65

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Solution

The fourth proportional to 439,643.36, 659,464.02 and 288,792.65 is: 433,188.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,643.36 : 659,464.02 = 288,792.65 : x
  2. Step 2: Convert to fraction form
    439,643.36/659,464.02 = 288,792.65/x
  3. Step 3: Cross multiply
    439,643.36x = 659,464.02 × 288,792.65
  4. Step 4: Simplify right side
    439,643.36x = 190,448,361,915.45
  5. Step 5: Solve for x
    x = 190,448,361,915.45/439,643.36
  6. Step 6: Final answer
    x = 433,188.30

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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.