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Finding the Fourth Proportional to 657,594.56, 907,480.50 and 355,788.56

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Solution

The fourth proportional to 657,594.56, 907,480.50 and 355,788.56 is: 490,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,594.56 : 907,480.50 = 355,788.56 : x
  2. Step 2: Convert to fraction form
    657,594.56/907,480.50 = 355,788.56/x
  3. Step 3: Cross multiply
    657,594.56x = 907,480.50 × 355,788.56
  4. Step 4: Simplify right side
    657,594.56x = 322,871,181,257.57
  5. Step 5: Solve for x
    x = 322,871,181,257.57/657,594.56
  6. Step 6: Final answer
    x = 490,988.22

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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.