Home / 498,078.86-747,477.32-198,386.06

Finding the Fourth Proportional to 498,078.86, 747,477.32 and 198,386.06

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Solution

The fourth proportional to 498,078.86, 747,477.32 and 198,386.06 is: 297,722.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,078.86 : 747,477.32 = 198,386.06 : x
  2. Step 2: Convert to fraction form
    498,078.86/747,477.32 = 198,386.06/x
  3. Step 3: Cross multiply
    498,078.86x = 747,477.32 × 198,386.06
  4. Step 4: Simplify right side
    498,078.86x = 148,289,075,724.84
  5. Step 5: Solve for x
    x = 148,289,075,724.84/498,078.86
  6. Step 6: Final answer
    x = 297,722.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.