Home / 563,400.03-777,498.18-308,745.75

Finding the Fourth Proportional to 563,400.03, 777,498.18 and 308,745.75

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Solution

The fourth proportional to 563,400.03, 777,498.18 and 308,745.75 is: 426,072.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,400.03 : 777,498.18 = 308,745.75 : x
  2. Step 2: Convert to fraction form
    563,400.03/777,498.18 = 308,745.75/x
  3. Step 3: Cross multiply
    563,400.03x = 777,498.18 × 308,745.75
  4. Step 4: Simplify right side
    563,400.03x = 240,049,258,707.74
  5. Step 5: Solve for x
    x = 240,049,258,707.74/563,400.03
  6. Step 6: Final answer
    x = 426,072.50

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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.