Home / 656,932.56-906,712.08-427,089.76

Finding the Fourth Proportional to 656,932.56, 906,712.08 and 427,089.76

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Solution

The fourth proportional to 656,932.56, 906,712.08 and 427,089.76 is: 589,478.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,932.56 : 906,712.08 = 427,089.76 : x
  2. Step 2: Convert to fraction form
    656,932.56/906,712.08 = 427,089.76/x
  3. Step 3: Cross multiply
    656,932.56x = 906,712.08 × 427,089.76
  4. Step 4: Simplify right side
    656,932.56x = 387,247,444,636.30
  5. Step 5: Solve for x
    x = 387,247,444,636.30/656,932.56
  6. Step 6: Final answer
    x = 589,478.23

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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.