Home / 645,169.50-890,333.91-362,545.50

Finding the Fourth Proportional to 645,169.50, 890,333.91 and 362,545.50

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Solution

The fourth proportional to 645,169.50, 890,333.91 and 362,545.50 is: 500,312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,169.50 : 890,333.91 = 362,545.50 : x
  2. Step 2: Convert to fraction form
    645,169.50/890,333.91 = 362,545.50/x
  3. Step 3: Cross multiply
    645,169.50x = 890,333.91 × 362,545.50
  4. Step 4: Simplify right side
    645,169.50x = 322,786,552,567.91
  5. Step 5: Solve for x
    x = 322,786,552,567.91/645,169.50
  6. Step 6: Final answer
    x = 500,312.79

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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.