Home / 679,617.78-1,019,452.59-346,804.98

Finding the Fourth Proportional to 679,617.78, 1,019,452.59 and 346,804.98

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Solution

The fourth proportional to 679,617.78, 1,019,452.59 and 346,804.98 is: 520,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,617.78 : 1,019,452.59 = 346,804.98 : x
  2. Step 2: Convert to fraction form
    679,617.78/1,019,452.59 = 346,804.98/x
  3. Step 3: Cross multiply
    679,617.78x = 1,019,452.59 × 346,804.98
  4. Step 4: Simplify right side
    679,617.78x = 353,551,235,085.90
  5. Step 5: Solve for x
    x = 353,551,235,085.90/679,617.78
  6. Step 6: Final answer
    x = 520,220.70

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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.