Home / 545,618.04-817,029.64-455,436.53

Finding the Fourth Proportional to 545,618.04, 817,029.64 and 455,436.53

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Solution

The fourth proportional to 545,618.04, 817,029.64 and 455,436.53 is: 681,988.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,618.04 : 817,029.64 = 455,436.53 : x
  2. Step 2: Convert to fraction form
    545,618.04/817,029.64 = 455,436.53/x
  3. Step 3: Cross multiply
    545,618.04x = 817,029.64 × 455,436.53
  4. Step 4: Simplify right side
    545,618.04x = 372,105,143,010.16
  5. Step 5: Solve for x
    x = 372,105,143,010.16/545,618.04
  6. Step 6: Final answer
    x = 681,988.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.