Home / 1,137,113.12-1,569,219.45-620,871.50

Finding the Fourth Proportional to 1,137,113.12, 1,569,219.45 and 620,871.50

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Solution

The fourth proportional to 1,137,113.12, 1,569,219.45 and 620,871.50 is: 856,804.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,113.12 : 1,569,219.45 = 620,871.50 : x
  2. Step 2: Convert to fraction form
    1,137,113.12/1,569,219.45 = 620,871.50/x
  3. Step 3: Cross multiply
    1,137,113.12x = 1,569,219.45 × 620,871.50
  4. Step 4: Simplify right side
    1,137,113.12x = 974,283,633,750.68
  5. Step 5: Solve for x
    x = 974,283,633,750.68/1,137,113.12
  6. Step 6: Final answer
    x = 856,804.50

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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.