Home / 1,381,445.10-1,892,586.66-1,329,670.50

Finding the Fourth Proportional to 1,381,445.10, 1,892,586.66 and 1,329,670.50

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Solution

The fourth proportional to 1,381,445.10, 1,892,586.66 and 1,329,670.50 is: 1,821,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,445.10 : 1,892,586.66 = 1,329,670.50 : x
  2. Step 2: Convert to fraction form
    1,381,445.10/1,892,586.66 = 1,329,670.50/x
  3. Step 3: Cross multiply
    1,381,445.10x = 1,892,586.66 × 1,329,670.50
  4. Step 4: Simplify right side
    1,381,445.10x = 2,516,516,650,495.53
  5. Step 5: Solve for x
    x = 2,516,516,650,495.53/1,381,445.10
  6. Step 6: Final answer
    x = 1,821,655.20

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.