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Finding the Fourth Proportional to 564,706.12, 779,295.30 and 310,073.56

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Solution

The fourth proportional to 564,706.12, 779,295.30 and 310,073.56 is: 427,901.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,706.12 : 779,295.30 = 310,073.56 : x
  2. Step 2: Convert to fraction form
    564,706.12/779,295.30 = 310,073.56/x
  3. Step 3: Cross multiply
    564,706.12x = 779,295.30 × 310,073.56
  4. Step 4: Simplify right side
    564,706.12x = 241,638,867,962.27
  5. Step 5: Solve for x
    x = 241,638,867,962.27/564,706.12
  6. Step 6: Final answer
    x = 427,901.98

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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.