Home / 929,266.20-1,393,899.30-612,005.40

Finding the Fourth Proportional to 929,266.20, 1,393,899.30 and 612,005.40

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Solution

The fourth proportional to 929,266.20, 1,393,899.30 and 612,005.40 is: 918,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,266.20 : 1,393,899.30 = 612,005.40 : x
  2. Step 2: Convert to fraction form
    929,266.20/1,393,899.30 = 612,005.40/x
  3. Step 3: Cross multiply
    929,266.20x = 1,393,899.30 × 612,005.40
  4. Step 4: Simplify right side
    929,266.20x = 853,073,898,656.22
  5. Step 5: Solve for x
    x = 853,073,898,656.22/929,266.20
  6. Step 6: Final answer
    x = 918,008.10

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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.