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Finding the Fourth Proportional to 562,077.90, 775,685.97 and 307,429.09

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Solution

The fourth proportional to 562,077.90, 775,685.97 and 307,429.09 is: 424,262.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,077.90 : 775,685.97 = 307,429.09 : x
  2. Step 2: Convert to fraction form
    562,077.90/775,685.97 = 307,429.09/x
  3. Step 3: Cross multiply
    562,077.90x = 775,685.97 × 307,429.09
  4. Step 4: Simplify right side
    562,077.90x = 238,468,429,943.65
  5. Step 5: Solve for x
    x = 238,468,429,943.65/562,077.90
  6. Step 6: Final answer
    x = 424,262.24

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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.