Home / 519,318.90-778,897.35-164,420.10

Finding the Fourth Proportional to 519,318.90, 778,897.35 and 164,420.10

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Solution

The fourth proportional to 519,318.90, 778,897.35 and 164,420.10 is: 246,604.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,318.90 : 778,897.35 = 164,420.10 : x
  2. Step 2: Convert to fraction form
    519,318.90/778,897.35 = 164,420.10/x
  3. Step 3: Cross multiply
    519,318.90x = 778,897.35 × 164,420.10
  4. Step 4: Simplify right side
    519,318.90x = 128,066,380,176.74
  5. Step 5: Solve for x
    x = 128,066,380,176.74/519,318.90
  6. Step 6: Final answer
    x = 246,604.50

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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.