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Finding the Fourth Proportional to 562,209.85, 775,855.71 and 307,555.57

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Solution

The fourth proportional to 562,209.85, 775,855.71 and 307,555.57 is: 424,430.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,209.85 : 775,855.71 = 307,555.57 : x
  2. Step 2: Convert to fraction form
    562,209.85/775,855.71 = 307,555.57/x
  3. Step 3: Cross multiply
    562,209.85x = 775,855.71 × 307,555.57
  4. Step 4: Simplify right side
    562,209.85x = 238,618,741,247.53
  5. Step 5: Solve for x
    x = 238,618,741,247.53/562,209.85
  6. Step 6: Final answer
    x = 424,430.03

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1.5x scale

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.