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Finding the Fourth Proportional to 618,582.80, 926,465.88 and 368,748.56

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Solution

The fourth proportional to 618,582.80, 926,465.88 and 368,748.56 is: 552,283.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,582.80 : 926,465.88 = 368,748.56 : x
  2. Step 2: Convert to fraction form
    618,582.80/926,465.88 = 368,748.56/x
  3. Step 3: Cross multiply
    618,582.80x = 926,465.88 × 368,748.56
  4. Step 4: Simplify right side
    618,582.80x = 341,632,959,139.13
  5. Step 5: Solve for x
    x = 341,632,959,139.13/618,582.80
  6. Step 6: Final answer
    x = 552,283.31

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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.