Home / 563,142.98-777,140.06-308,494.17

Finding the Fourth Proportional to 563,142.98, 777,140.06 and 308,494.17

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Solution

The fourth proportional to 563,142.98, 777,140.06 and 308,494.17 is: 425,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,142.98 : 777,140.06 = 308,494.17 : x
  2. Step 2: Convert to fraction form
    563,142.98/777,140.06 = 308,494.17/x
  3. Step 3: Cross multiply
    563,142.98x = 777,140.06 × 308,494.17
  4. Step 4: Simplify right side
    563,142.98x = 239,743,176,240.98
  5. Step 5: Solve for x
    x = 239,743,176,240.98/563,142.98
  6. Step 6: Final answer
    x = 425,723.46

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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.