Home / 759,138.04-1,047,631.66-419,628.12

Finding the Fourth Proportional to 759,138.04, 1,047,631.66 and 419,628.12

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Solution

The fourth proportional to 759,138.04, 1,047,631.66 and 419,628.12 is: 579,098.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,138.04 : 1,047,631.66 = 419,628.12 : x
  2. Step 2: Convert to fraction form
    759,138.04/1,047,631.66 = 419,628.12/x
  3. Step 3: Cross multiply
    759,138.04x = 1,047,631.66 × 419,628.12
  4. Step 4: Simplify right side
    759,138.04x = 439,615,703,938.28
  5. Step 5: Solve for x
    x = 439,615,703,938.28/759,138.04
  6. Step 6: Final answer
    x = 579,098.50

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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.