Home / 717,868.35-1,075,787.39-398,161.07

Finding the Fourth Proportional to 717,868.35, 1,075,787.39 and 398,161.07

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Solution

The fourth proportional to 717,868.35, 1,075,787.39 and 398,161.07 is: 596,678.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,868.35 : 1,075,787.39 = 398,161.07 : x
  2. Step 2: Convert to fraction form
    717,868.35/1,075,787.39 = 398,161.07/x
  3. Step 3: Cross multiply
    717,868.35x = 1,075,787.39 × 398,161.07
  4. Step 4: Simplify right side
    717,868.35x = 428,336,658,294.91
  5. Step 5: Solve for x
    x = 428,336,658,294.91/717,868.35
  6. Step 6: Final answer
    x = 596,678.57

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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.