Home / 579,385-869,038.62-158,664.52

Finding the Fourth Proportional to 579,385, 869,038.62 and 158,664.52

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Solution

The fourth proportional to 579,385, 869,038.62 and 158,664.52 is: 237,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,385 : 869,038.62 = 158,664.52 : x
  2. Step 2: Convert to fraction form
    579,385/869,038.62 = 158,664.52/x
  3. Step 3: Cross multiply
    579,385x = 869,038.62 × 158,664.52
  4. Step 4: Simplify right side
    579,385x = 137,885,595,503.76
  5. Step 5: Solve for x
    x = 137,885,595,503.76/579,385
  6. Step 6: Final answer
    x = 237,986.13

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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.