Home / 470,824.80-705,315.60-283,279.20

Finding the Fourth Proportional to 470,824.80, 705,315.60 and 283,279.20

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Solution

The fourth proportional to 470,824.80, 705,315.60 and 283,279.20 is: 424,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,824.80 : 705,315.60 = 283,279.20 : x
  2. Step 2: Convert to fraction form
    470,824.80/705,315.60 = 283,279.20/x
  3. Step 3: Cross multiply
    470,824.80x = 705,315.60 × 283,279.20
  4. Step 4: Simplify right side
    470,824.80x = 199,801,238,915.52
  5. Step 5: Solve for x
    x = 199,801,238,915.52/470,824.80
  6. Step 6: Final answer
    x = 424,364.30

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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.