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Finding the Fourth Proportional to 564,718.38, 779,322.51 and 310,067.34

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Solution

The fourth proportional to 564,718.38, 779,322.51 and 310,067.34 is: 427,899.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,718.38 : 779,322.51 = 310,067.34 : x
  2. Step 2: Convert to fraction form
    564,718.38/779,322.51 = 310,067.34/x
  3. Step 3: Cross multiply
    564,718.38x = 779,322.51 × 310,067.34
  4. Step 4: Simplify right side
    564,718.38x = 241,642,457,677.82
  5. Step 5: Solve for x
    x = 241,642,457,677.82/564,718.38
  6. Step 6: Final answer
    x = 427,899.05

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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.