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Finding the Fourth Proportional to 407,239.59, 607,552.65 and 385,194.63

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Solution

The fourth proportional to 407,239.59, 607,552.65 and 385,194.63 is: 574,664.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,239.59 : 607,552.65 = 385,194.63 : x
  2. Step 2: Convert to fraction form
    407,239.59/607,552.65 = 385,194.63/x
  3. Step 3: Cross multiply
    407,239.59x = 607,552.65 × 385,194.63
  4. Step 4: Simplify right side
    407,239.59x = 234,026,018,222.27
  5. Step 5: Solve for x
    x = 234,026,018,222.27/407,239.59
  6. Step 6: Final answer
    x = 574,664.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.