Home / 1,243,009.71-1,864,795.10-378,521.96

Finding the Fourth Proportional to 1,243,009.71, 1,864,795.10 and 378,521.96

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Solution

The fourth proportional to 1,243,009.71, 1,864,795.10 and 378,521.96 is: 567,868.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,009.71 : 1,864,795.10 = 378,521.96 : x
  2. Step 2: Convert to fraction form
    1,243,009.71/1,864,795.10 = 378,521.96/x
  3. Step 3: Cross multiply
    1,243,009.71x = 1,864,795.10 × 378,521.96
  4. Step 4: Simplify right side
    1,243,009.71x = 705,865,885,033.81
  5. Step 5: Solve for x
    x = 705,865,885,033.81/1,243,009.71
  6. Step 6: Final answer
    x = 567,868.36

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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.