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Finding the Fourth Proportional to 554,039.84, 765,205.52 and 372,436.80

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Solution

The fourth proportional to 554,039.84, 765,205.52 and 372,436.80 is: 514,386.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,039.84 : 765,205.52 = 372,436.80 : x
  2. Step 2: Convert to fraction form
    554,039.84/765,205.52 = 372,436.80/x
  3. Step 3: Cross multiply
    554,039.84x = 765,205.52 × 372,436.80
  4. Step 4: Simplify right side
    554,039.84x = 284,990,693,348.95
  5. Step 5: Solve for x
    x = 284,990,693,348.95/554,039.84
  6. Step 6: Final answer
    x = 514,386.65

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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.