Home / 857,375.64-1,285,608.24-288,566.91

Finding the Fourth Proportional to 857,375.64, 1,285,608.24 and 288,566.91

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Solution

The fourth proportional to 857,375.64, 1,285,608.24 and 288,566.91 is: 432,697.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,375.64 : 1,285,608.24 = 288,566.91 : x
  2. Step 2: Convert to fraction form
    857,375.64/1,285,608.24 = 288,566.91/x
  3. Step 3: Cross multiply
    857,375.64x = 1,285,608.24 × 288,566.91
  4. Step 4: Simplify right side
    857,375.64x = 370,983,997,287.34
  5. Step 5: Solve for x
    x = 370,983,997,287.34/857,375.64
  6. Step 6: Final answer
    x = 432,697.15

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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.