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Finding the Fourth Proportional to 560,877.92, 774,079.44 and 319,219.28

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Solution

The fourth proportional to 560,877.92, 774,079.44 and 319,219.28 is: 440,561.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,877.92 : 774,079.44 = 319,219.28 : x
  2. Step 2: Convert to fraction form
    560,877.92/774,079.44 = 319,219.28/x
  3. Step 3: Cross multiply
    560,877.92x = 774,079.44 × 319,219.28
  4. Step 4: Simplify right side
    560,877.92x = 247,101,081,499.60
  5. Step 5: Solve for x
    x = 247,101,081,499.60/560,877.92
  6. Step 6: Final answer
    x = 440,561.26

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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.