Home / 1,247,590.44-1,721,685.06-688,802.76

Finding the Fourth Proportional to 1,247,590.44, 1,721,685.06 and 688,802.76

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Solution

The fourth proportional to 1,247,590.44, 1,721,685.06 and 688,802.76 is: 950,553.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,590.44 : 1,721,685.06 = 688,802.76 : x
  2. Step 2: Convert to fraction form
    1,247,590.44/1,721,685.06 = 688,802.76/x
  3. Step 3: Cross multiply
    1,247,590.44x = 1,721,685.06 × 688,802.76
  4. Step 4: Simplify right side
    1,247,590.44x = 1,185,901,421,178.77
  5. Step 5: Solve for x
    x = 1,185,901,421,178.77/1,247,590.44
  6. Step 6: Final answer
    x = 950,553.47

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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.