Home / 698,911.98-964,104.44-419,437.72

Finding the Fourth Proportional to 698,911.98, 964,104.44 and 419,437.72

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Solution

The fourth proportional to 698,911.98, 964,104.44 and 419,437.72 is: 578,587.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,911.98 : 964,104.44 = 419,437.72 : x
  2. Step 2: Convert to fraction form
    698,911.98/964,104.44 = 419,437.72/x
  3. Step 3: Cross multiply
    698,911.98x = 964,104.44 × 419,437.72
  4. Step 4: Simplify right side
    698,911.98x = 404,381,771,242.69
  5. Step 5: Solve for x
    x = 404,381,771,242.69/698,911.98
  6. Step 6: Final answer
    x = 578,587.55

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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.