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Finding the Fourth Proportional to 539,995.48, 745,189.08 and 298,294.93

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Solution

The fourth proportional to 539,995.48, 745,189.08 and 298,294.93 is: 411,644.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,995.48 : 745,189.08 = 298,294.93 : x
  2. Step 2: Convert to fraction form
    539,995.48/745,189.08 = 298,294.93/x
  3. Step 3: Cross multiply
    539,995.48x = 745,189.08 × 298,294.93
  4. Step 4: Simplify right side
    539,995.48x = 222,286,124,455.36
  5. Step 5: Solve for x
    x = 222,286,124,455.36/539,995.48
  6. Step 6: Final answer
    x = 411,644.42

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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.