Home / 1,378,463.01-1,902,366.05-774,889.89

Finding the Fourth Proportional to 1,378,463.01, 1,902,366.05 and 774,889.89

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Solution

The fourth proportional to 1,378,463.01, 1,902,366.05 and 774,889.89 is: 1,069,397.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,463.01 : 1,902,366.05 = 774,889.89 : x
  2. Step 2: Convert to fraction form
    1,378,463.01/1,902,366.05 = 774,889.89/x
  3. Step 3: Cross multiply
    1,378,463.01x = 1,902,366.05 × 774,889.89
  4. Step 4: Simplify right side
    1,378,463.01x = 1,474,124,215,349.79
  5. Step 5: Solve for x
    x = 1,474,124,215,349.79/1,378,463.01
  6. Step 6: Final answer
    x = 1,069,397.01

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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.