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Finding the Fourth Proportional to 607,618.56, 838,519.80 and 424,123.80

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Solution

The fourth proportional to 607,618.56, 838,519.80 and 424,123.80 is: 585,295.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,618.56 : 838,519.80 = 424,123.80 : x
  2. Step 2: Convert to fraction form
    607,618.56/838,519.80 = 424,123.80/x
  3. Step 3: Cross multiply
    607,618.56x = 838,519.80 × 424,123.80
  4. Step 4: Simplify right side
    607,618.56x = 355,636,199,216.33
  5. Step 5: Solve for x
    x = 355,636,199,216.33/607,618.56
  6. Step 6: Final answer
    x = 585,295.15

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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.