Home / 579,474.40-868,045.20-402,181.60

Finding the Fourth Proportional to 579,474.40, 868,045.20 and 402,181.60

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Solution

The fourth proportional to 579,474.40, 868,045.20 and 402,181.60 is: 602,462.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,474.40 : 868,045.20 = 402,181.60 : x
  2. Step 2: Convert to fraction form
    579,474.40/868,045.20 = 402,181.60/x
  3. Step 3: Cross multiply
    579,474.40x = 868,045.20 × 402,181.60
  4. Step 4: Simplify right side
    579,474.40x = 349,111,807,408.32
  5. Step 5: Solve for x
    x = 349,111,807,408.32/579,474.40
  6. Step 6: Final answer
    x = 602,462.87

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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.