Home / 1,375,280.75-1,898,084.79-824,018.21

Finding the Fourth Proportional to 1,375,280.75, 1,898,084.79 and 824,018.21

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Solution

The fourth proportional to 1,375,280.75, 1,898,084.79 and 824,018.21 is: 1,137,263.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,280.75 : 1,898,084.79 = 824,018.21 : x
  2. Step 2: Convert to fraction form
    1,375,280.75/1,898,084.79 = 824,018.21/x
  3. Step 3: Cross multiply
    1,375,280.75x = 1,898,084.79 × 824,018.21
  4. Step 4: Simplify right side
    1,375,280.75x = 1,564,056,421,593.60
  5. Step 5: Solve for x
    x = 1,564,056,421,593.60/1,375,280.75
  6. Step 6: Final answer
    x = 1,137,263.37

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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.