Home / 492,356.02-679,454.28-274,578.46

Finding the Fourth Proportional to 492,356.02, 679,454.28 and 274,578.46

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Solution

The fourth proportional to 492,356.02, 679,454.28 and 274,578.46 is: 378,919.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,356.02 : 679,454.28 = 274,578.46 : x
  2. Step 2: Convert to fraction form
    492,356.02/679,454.28 = 274,578.46/x
  3. Step 3: Cross multiply
    492,356.02x = 679,454.28 × 274,578.46
  4. Step 4: Simplify right side
    492,356.02x = 186,563,509,842.81
  5. Step 5: Solve for x
    x = 186,563,509,842.81/492,356.02
  6. Step 6: Final answer
    x = 378,919.93

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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.