Home / 889,931.76-1,334,786.32-290,842.80

Finding the Fourth Proportional to 889,931.76, 1,334,786.32 and 290,842.80

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Solution

The fourth proportional to 889,931.76, 1,334,786.32 and 290,842.80 is: 436,227.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,931.76 : 1,334,786.32 = 290,842.80 : x
  2. Step 2: Convert to fraction form
    889,931.76/1,334,786.32 = 290,842.80/x
  3. Step 3: Cross multiply
    889,931.76x = 1,334,786.32 × 290,842.80
  4. Step 4: Simplify right side
    889,931.76x = 388,212,990,710.50
  5. Step 5: Solve for x
    x = 388,212,990,710.50/889,931.76
  6. Step 6: Final answer
    x = 436,227.82

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1.5x scale

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.