Home / 762,819.04-1,052,690.88-423,287.20

Finding the Fourth Proportional to 762,819.04, 1,052,690.88 and 423,287.20

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Solution

The fourth proportional to 762,819.04, 1,052,690.88 and 423,287.20 is: 584,136.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,819.04 : 1,052,690.88 = 423,287.20 : x
  2. Step 2: Convert to fraction form
    762,819.04/1,052,690.88 = 423,287.20/x
  3. Step 3: Cross multiply
    762,819.04x = 1,052,690.88 × 423,287.20
  4. Step 4: Simplify right side
    762,819.04x = 445,590,575,060.74
  5. Step 5: Solve for x
    x = 445,590,575,060.74/762,819.04
  6. Step 6: Final answer
    x = 584,136.67

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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.