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Finding the Fourth Proportional to 618,273, 853,216.74 and 350,001

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Solution

The fourth proportional to 618,273, 853,216.74 and 350,001 is: 483,001.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,273 : 853,216.74 = 350,001 : x
  2. Step 2: Convert to fraction form
    618,273/853,216.74 = 350,001/x
  3. Step 3: Cross multiply
    618,273x = 853,216.74 × 350,001
  4. Step 4: Simplify right side
    618,273x = 298,626,712,216.74
  5. Step 5: Solve for x
    x = 298,626,712,216.74/618,273
  6. Step 6: Final answer
    x = 483,001.38

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1.5x scale

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.