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Finding the Fourth Proportional to 855,967, 1,181,031.60 and 506,931.12

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Solution

The fourth proportional to 855,967, 1,181,031.60 and 506,931.12 is: 699,444.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,967 : 1,181,031.60 = 506,931.12 : x
  2. Step 2: Convert to fraction form
    855,967/1,181,031.60 = 506,931.12/x
  3. Step 3: Cross multiply
    855,967x = 1,181,031.60 × 506,931.12
  4. Step 4: Simplify right side
    855,967x = 598,701,671,743.39
  5. Step 5: Solve for x
    x = 598,701,671,743.39/855,967
  6. Step 6: Final answer
    x = 699,444.81

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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.