Home / 564,769.48-779,376.27-306,640.75

Finding the Fourth Proportional to 564,769.48, 779,376.27 and 306,640.75

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Solution

The fourth proportional to 564,769.48, 779,376.27 and 306,640.75 is: 423,161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,769.48 : 779,376.27 = 306,640.75 : x
  2. Step 2: Convert to fraction form
    564,769.48/779,376.27 = 306,640.75/x
  3. Step 3: Cross multiply
    564,769.48x = 779,376.27 × 306,640.75
  4. Step 4: Simplify right side
    564,769.48x = 238,988,523,965.00
  5. Step 5: Solve for x
    x = 238,988,523,965.00/564,769.48
  6. Step 6: Final answer
    x = 423,161.19

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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.