Home / 757,813.50-1,045,782.72-418,281.84

Finding the Fourth Proportional to 757,813.50, 1,045,782.72 and 418,281.84

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Solution

The fourth proportional to 757,813.50, 1,045,782.72 and 418,281.84 is: 577,228.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,813.50 : 1,045,782.72 = 418,281.84 : x
  2. Step 2: Convert to fraction form
    757,813.50/1,045,782.72 = 418,281.84/x
  3. Step 3: Cross multiply
    757,813.50x = 1,045,782.72 × 418,281.84
  4. Step 4: Simplify right side
    757,813.50x = 437,431,920,361.81
  5. Step 5: Solve for x
    x = 437,431,920,361.81/757,813.50
  6. Step 6: Final answer
    x = 577,228.99

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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.