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Finding the Fourth Proportional to 618,969.34, 928,721.27 and 334,860.01

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Solution

The fourth proportional to 618,969.34, 928,721.27 and 334,860.01 is: 502,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,969.34 : 928,721.27 = 334,860.01 : x
  2. Step 2: Convert to fraction form
    618,969.34/928,721.27 = 334,860.01/x
  3. Step 3: Cross multiply
    618,969.34x = 928,721.27 × 334,860.01
  4. Step 4: Simplify right side
    618,969.34x = 310,991,613,759.41
  5. Step 5: Solve for x
    x = 310,991,613,759.41/618,969.34
  6. Step 6: Final answer
    x = 502,434.60

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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.