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Finding the Fourth Proportional to 564,584.15, 779,126.88 and 306,460.93

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Solution

The fourth proportional to 564,584.15, 779,126.88 and 306,460.93 is: 422,916.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,584.15 : 779,126.88 = 306,460.93 : x
  2. Step 2: Convert to fraction form
    564,584.15/779,126.88 = 306,460.93/x
  3. Step 3: Cross multiply
    564,584.15x = 779,126.88 × 306,460.93
  4. Step 4: Simplify right side
    564,584.15x = 238,771,942,804.86
  5. Step 5: Solve for x
    x = 238,771,942,804.86/564,584.15
  6. Step 6: Final answer
    x = 422,916.48

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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.