Home / 717,962.67-1,075,928.54-398,255.40

Finding the Fourth Proportional to 717,962.67, 1,075,928.54 and 398,255.40

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Solution

The fourth proportional to 717,962.67, 1,075,928.54 and 398,255.40 is: 596,819.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,962.67 : 1,075,928.54 = 398,255.40 : x
  2. Step 2: Convert to fraction form
    717,962.67/1,075,928.54 = 398,255.40/x
  3. Step 3: Cross multiply
    717,962.67x = 1,075,928.54 × 398,255.40
  4. Step 4: Simplify right side
    717,962.67x = 428,494,349,077.84
  5. Step 5: Solve for x
    x = 428,494,349,077.84/717,962.67
  6. Step 6: Final answer
    x = 596,819.82

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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.