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Finding the Fourth Proportional to 560,356.85, 773,289.86 and 305,708.04

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Solution

The fourth proportional to 560,356.85, 773,289.86 and 305,708.04 is: 421,875.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,356.85 : 773,289.86 = 305,708.04 : x
  2. Step 2: Convert to fraction form
    560,356.85/773,289.86 = 305,708.04/x
  3. Step 3: Cross multiply
    560,356.85x = 773,289.86 × 305,708.04
  4. Step 4: Simplify right side
    560,356.85x = 236,400,925,923.93
  5. Step 5: Solve for x
    x = 236,400,925,923.93/560,356.85
  6. Step 6: Final answer
    x = 421,875.68

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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.