Home / 1,220,563.56-1,684,477.50-676,869.86

Finding the Fourth Proportional to 1,220,563.56, 1,684,477.50 and 676,869.86

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Solution

The fourth proportional to 1,220,563.56, 1,684,477.50 and 676,869.86 is: 934,135.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,563.56 : 1,684,477.50 = 676,869.86 : x
  2. Step 2: Convert to fraction form
    1,220,563.56/1,684,477.50 = 676,869.86/x
  3. Step 3: Cross multiply
    1,220,563.56x = 1,684,477.50 × 676,869.86
  4. Step 4: Simplify right side
    1,220,563.56x = 1,140,172,049,598.15
  5. Step 5: Solve for x
    x = 1,140,172,049,598.15/1,220,563.56
  6. Step 6: Final answer
    x = 934,135.74

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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.