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Finding the Fourth Proportional to 675,921, 932,769.63 and 369,997.47

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Solution

The fourth proportional to 675,921, 932,769.63 and 369,997.47 is: 510,595.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,921 : 932,769.63 = 369,997.47 : x
  2. Step 2: Convert to fraction form
    675,921/932,769.63 = 369,997.47/x
  3. Step 3: Cross multiply
    675,921x = 932,769.63 × 369,997.47
  4. Step 4: Simplify right side
    675,921x = 345,122,403,192.84
  5. Step 5: Solve for x
    x = 345,122,403,192.84/675,921
  6. Step 6: Final answer
    x = 510,595.77

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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.