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Finding the Fourth Proportional to 657,581.32, 907,462.58 and 456,493.96

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Solution

The fourth proportional to 657,581.32, 907,462.58 and 456,493.96 is: 629,961.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,581.32 : 907,462.58 = 456,493.96 : x
  2. Step 2: Convert to fraction form
    657,581.32/907,462.58 = 456,493.96/x
  3. Step 3: Cross multiply
    657,581.32x = 907,462.58 × 456,493.96
  4. Step 4: Simplify right side
    657,581.32x = 414,251,186,696.02
  5. Step 5: Solve for x
    x = 414,251,186,696.02/657,581.32
  6. Step 6: Final answer
    x = 629,961.91

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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.