Home / 1,021,290.63-1,531,492.80-347,190.85

Finding the Fourth Proportional to 1,021,290.63, 1,531,492.80 and 347,190.85

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Solution

The fourth proportional to 1,021,290.63, 1,531,492.80 and 347,190.85 is: 520,635.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,290.63 : 1,531,492.80 = 347,190.85 : x
  2. Step 2: Convert to fraction form
    1,021,290.63/1,531,492.80 = 347,190.85/x
  3. Step 3: Cross multiply
    1,021,290.63x = 1,531,492.80 × 347,190.85
  4. Step 4: Simplify right side
    1,021,290.63x = 531,720,287,000.88
  5. Step 5: Solve for x
    x = 531,720,287,000.88/1,021,290.63
  6. Step 6: Final answer
    x = 520,635.63

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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.