Home / 767,745.54-1,059,511.59-428,206.50

Finding the Fourth Proportional to 767,745.54, 1,059,511.59 and 428,206.50

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Solution

The fourth proportional to 767,745.54, 1,059,511.59 and 428,206.50 is: 590,937.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,745.54 : 1,059,511.59 = 428,206.50 : x
  2. Step 2: Convert to fraction form
    767,745.54/1,059,511.59 = 428,206.50/x
  3. Step 3: Cross multiply
    767,745.54x = 1,059,511.59 × 428,206.50
  4. Step 4: Simplify right side
    767,745.54x = 453,689,749,663.34
  5. Step 5: Solve for x
    x = 453,689,749,663.34/767,745.54
  6. Step 6: Final answer
    x = 590,937.66

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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.