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Finding the Fourth Proportional to 605,438.32, 834,632.04 and 423,586.84

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Solution

The fourth proportional to 605,438.32, 834,632.04 and 423,586.84 is: 583,939.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,438.32 : 834,632.04 = 423,586.84 : x
  2. Step 2: Convert to fraction form
    605,438.32/834,632.04 = 423,586.84/x
  3. Step 3: Cross multiply
    605,438.32x = 834,632.04 × 423,586.84
  4. Step 4: Simplify right side
    605,438.32x = 353,539,148,386.35
  5. Step 5: Solve for x
    x = 353,539,148,386.35/605,438.32
  6. Step 6: Final answer
    x = 583,939.17

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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.