Home / 918,828.42-1,267,984.28-510,921.51

Finding the Fourth Proportional to 918,828.42, 1,267,984.28 and 510,921.51

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Solution

The fourth proportional to 918,828.42, 1,267,984.28 and 510,921.51 is: 705,072.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,828.42 : 1,267,984.28 = 510,921.51 : x
  2. Step 2: Convert to fraction form
    918,828.42/1,267,984.28 = 510,921.51/x
  3. Step 3: Cross multiply
    918,828.42x = 1,267,984.28 × 510,921.51
  4. Step 4: Simplify right side
    918,828.42x = 647,840,434,099.33
  5. Step 5: Solve for x
    x = 647,840,434,099.33/918,828.42
  6. Step 6: Final answer
    x = 705,072.26

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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.