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Finding the Fourth Proportional to 657,750.76, 907,696.02 and 355,944.76

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Solution

The fourth proportional to 657,750.76, 907,696.02 and 355,944.76 is: 491,203.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,750.76 : 907,696.02 = 355,944.76 : x
  2. Step 2: Convert to fraction form
    657,750.76/907,696.02 = 355,944.76/x
  3. Step 3: Cross multiply
    657,750.76x = 907,696.02 × 355,944.76
  4. Step 4: Simplify right side
    657,750.76x = 323,089,641,991.86
  5. Step 5: Solve for x
    x = 323,089,641,991.86/657,750.76
  6. Step 6: Final answer
    x = 491,203.75

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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.