Home / 563,387.03-777,480.23-308,732.75

Finding the Fourth Proportional to 563,387.03, 777,480.23 and 308,732.75

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Solution

The fourth proportional to 563,387.03, 777,480.23 and 308,732.75 is: 426,054.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,387.03 : 777,480.23 = 308,732.75 : x
  2. Step 2: Convert to fraction form
    563,387.03/777,480.23 = 308,732.75/x
  3. Step 3: Cross multiply
    563,387.03x = 777,480.23 × 308,732.75
  4. Step 4: Simplify right side
    563,387.03x = 240,033,607,934.87
  5. Step 5: Solve for x
    x = 240,033,607,934.87/563,387.03
  6. Step 6: Final answer
    x = 426,054.55

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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.