Home / 479,555.44-661,380.24-288,533.16

Finding the Fourth Proportional to 479,555.44, 661,380.24 and 288,533.16

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Solution

The fourth proportional to 479,555.44, 661,380.24 and 288,533.16 is: 397,931.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,555.44 : 661,380.24 = 288,533.16 : x
  2. Step 2: Convert to fraction form
    479,555.44/661,380.24 = 288,533.16/x
  3. Step 3: Cross multiply
    479,555.44x = 661,380.24 × 288,533.16
  4. Step 4: Simplify right side
    479,555.44x = 190,830,130,608.76
  5. Step 5: Solve for x
    x = 190,830,130,608.76/479,555.44
  6. Step 6: Final answer
    x = 397,931.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.