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Finding the Fourth Proportional to 657,844.67, 907,825.39 and 356,038.67

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Solution

The fourth proportional to 657,844.67, 907,825.39 and 356,038.67 is: 491,333.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,844.67 : 907,825.39 = 356,038.67 : x
  2. Step 2: Convert to fraction form
    657,844.67/907,825.39 = 356,038.67/x
  3. Step 3: Cross multiply
    657,844.67x = 907,825.39 × 356,038.67
  4. Step 4: Simplify right side
    657,844.67x = 323,220,945,827.30
  5. Step 5: Solve for x
    x = 323,220,945,827.30/657,844.67
  6. Step 6: Final answer
    x = 491,333.23

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Double scale
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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.