Home / 579,434.64-869,158.44-381,004.08

Finding the Fourth Proportional to 579,434.64, 869,158.44 and 381,004.08

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Solution

The fourth proportional to 579,434.64, 869,158.44 and 381,004.08 is: 571,510.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,434.64 : 869,158.44 = 381,004.08 : x
  2. Step 2: Convert to fraction form
    579,434.64/869,158.44 = 381,004.08/x
  3. Step 3: Cross multiply
    579,434.64x = 869,158.44 × 381,004.08
  4. Step 4: Simplify right side
    579,434.64x = 331,152,911,806.44
  5. Step 5: Solve for x
    x = 331,152,911,806.44/579,434.64
  6. Step 6: Final answer
    x = 571,510.38

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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.