Home / 927,345.70-1,388,638.77-642,630.70

Finding the Fourth Proportional to 927,345.70, 1,388,638.77 and 642,630.70

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Solution

The fourth proportional to 927,345.70, 1,388,638.77 and 642,630.70 is: 962,296.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,345.70 : 1,388,638.77 = 642,630.70 : x
  2. Step 2: Convert to fraction form
    927,345.70/1,388,638.77 = 642,630.70/x
  3. Step 3: Cross multiply
    927,345.70x = 1,388,638.77 × 642,630.70
  4. Step 4: Simplify right side
    927,345.70x = 892,381,904,812.24
  5. Step 5: Solve for x
    x = 892,381,904,812.24/927,345.70
  6. Step 6: Final answer
    x = 962,296.91

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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.