Home / 759,359.79-1,047,937.64-419,849.91

Finding the Fourth Proportional to 759,359.79, 1,047,937.64 and 419,849.91

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Solution

The fourth proportional to 759,359.79, 1,047,937.64 and 419,849.91 is: 579,404.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,359.79 : 1,047,937.64 = 419,849.91 : x
  2. Step 2: Convert to fraction form
    759,359.79/1,047,937.64 = 419,849.91/x
  3. Step 3: Cross multiply
    759,359.79x = 1,047,937.64 × 419,849.91
  4. Step 4: Simplify right side
    759,359.79x = 439,976,521,740.36
  5. Step 5: Solve for x
    x = 439,976,521,740.36/759,359.79
  6. Step 6: Final answer
    x = 579,404.56

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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.