Home / 917,914.64-1,377,411.33-385,394.72

Finding the Fourth Proportional to 917,914.64, 1,377,411.33 and 385,394.72

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Solution

The fourth proportional to 917,914.64, 1,377,411.33 and 385,394.72 is: 578,318.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,914.64 : 1,377,411.33 = 385,394.72 : x
  2. Step 2: Convert to fraction form
    917,914.64/1,377,411.33 = 385,394.72/x
  3. Step 3: Cross multiply
    917,914.64x = 1,377,411.33 × 385,394.72
  4. Step 4: Simplify right side
    917,914.64x = 530,847,053,850.18
  5. Step 5: Solve for x
    x = 530,847,053,850.18/917,914.64
  6. Step 6: Final answer
    x = 578,318.54

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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.