Home / 1,257,321.30-1,886,263.22-458,602.85

Finding the Fourth Proportional to 1,257,321.30, 1,886,263.22 and 458,602.85

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Solution

The fourth proportional to 1,257,321.30, 1,886,263.22 and 458,602.85 is: 688,006.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,321.30 : 1,886,263.22 = 458,602.85 : x
  2. Step 2: Convert to fraction form
    1,257,321.30/1,886,263.22 = 458,602.85/x
  3. Step 3: Cross multiply
    1,257,321.30x = 1,886,263.22 × 458,602.85
  4. Step 4: Simplify right side
    1,257,321.30x = 865,045,682,337.00
  5. Step 5: Solve for x
    x = 865,045,682,337.00/1,257,321.30
  6. Step 6: Final answer
    x = 688,006.86

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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.