Home / 656,942.24-906,580.80-355,136.16

Finding the Fourth Proportional to 656,942.24, 906,580.80 and 355,136.16

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Solution

The fourth proportional to 656,942.24, 906,580.80 and 355,136.16 is: 490,088.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,942.24 : 906,580.80 = 355,136.16 : x
  2. Step 2: Convert to fraction form
    656,942.24/906,580.80 = 355,136.16/x
  3. Step 3: Cross multiply
    656,942.24x = 906,580.80 × 355,136.16
  4. Step 4: Simplify right side
    656,942.24x = 321,959,624,041.73
  5. Step 5: Solve for x
    x = 321,959,624,041.73/656,942.24
  6. Step 6: Final answer
    x = 490,088.18

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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.