Home / 765,795.02-1,057,124.21-545,174.72

Finding the Fourth Proportional to 765,795.02, 1,057,124.21 and 545,174.72

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Solution

The fourth proportional to 765,795.02, 1,057,124.21 and 545,174.72 is: 752,573.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,795.02 : 1,057,124.21 = 545,174.72 : x
  2. Step 2: Convert to fraction form
    765,795.02/1,057,124.21 = 545,174.72/x
  3. Step 3: Cross multiply
    765,795.02x = 1,057,124.21 × 545,174.72
  4. Step 4: Simplify right side
    765,795.02x = 576,317,397,153.31
  5. Step 5: Solve for x
    x = 576,317,397,153.31/765,795.02
  6. Step 6: Final answer
    x = 752,573.97

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1.5x scale

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.