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Finding the Fourth Proportional to 660,936.54, 912,089.25 and 374,456.01

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Solution

The fourth proportional to 660,936.54, 912,089.25 and 374,456.01 is: 516,747.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,936.54 : 912,089.25 = 374,456.01 : x
  2. Step 2: Convert to fraction form
    660,936.54/912,089.25 = 374,456.01/x
  3. Step 3: Cross multiply
    660,936.54x = 912,089.25 × 374,456.01
  4. Step 4: Simplify right side
    660,936.54x = 341,537,301,318.89
  5. Step 5: Solve for x
    x = 341,537,301,318.89/660,936.54
  6. Step 6: Final answer
    x = 516,747.49

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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.