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Finding the Fourth Proportional to 657,459.06, 907,294.41 and 355,653.06

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Solution

The fourth proportional to 657,459.06, 907,294.41 and 355,653.06 is: 490,801.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,459.06 : 907,294.41 = 355,653.06 : x
  2. Step 2: Convert to fraction form
    657,459.06/907,294.41 = 355,653.06/x
  3. Step 3: Cross multiply
    657,459.06x = 907,294.41 × 355,653.06
  4. Step 4: Simplify right side
    657,459.06x = 322,682,033,237.40
  5. Step 5: Solve for x
    x = 322,682,033,237.40/657,459.06
  6. Step 6: Final answer
    x = 490,801.71

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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.