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Finding the Fourth Proportional to 560,386.56, 773,332.32 and 305,737.60

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Solution

The fourth proportional to 560,386.56, 773,332.32 and 305,737.60 is: 421,917.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,386.56 : 773,332.32 = 305,737.60 : x
  2. Step 2: Convert to fraction form
    560,386.56/773,332.32 = 305,737.60/x
  3. Step 3: Cross multiply
    560,386.56x = 773,332.32 × 305,737.60
  4. Step 4: Simplify right side
    560,386.56x = 236,436,767,519.23
  5. Step 5: Solve for x
    x = 236,436,767,519.23/560,386.56
  6. Step 6: Final answer
    x = 421,917.27

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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.