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Finding the Fourth Proportional to 545,442.90, 752,816.37 and 330,700.58

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Solution

The fourth proportional to 545,442.90, 752,816.37 and 330,700.58 is: 456,430.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,442.90 : 752,816.37 = 330,700.58 : x
  2. Step 2: Convert to fraction form
    545,442.90/752,816.37 = 330,700.58/x
  3. Step 3: Cross multiply
    545,442.90x = 752,816.37 × 330,700.58
  4. Step 4: Simplify right side
    545,442.90x = 248,956,810,192.50
  5. Step 5: Solve for x
    x = 248,956,810,192.50/545,442.90
  6. Step 6: Final answer
    x = 456,430.56

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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.