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Finding the Fourth Proportional to 564,816.23, 779,423.07 and 306,683.07

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Solution

The fourth proportional to 564,816.23, 779,423.07 and 306,683.07 is: 423,209.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,816.23 : 779,423.07 = 306,683.07 : x
  2. Step 2: Convert to fraction form
    564,816.23/779,423.07 = 306,683.07/x
  3. Step 3: Cross multiply
    564,816.23x = 779,423.07 × 306,683.07
  4. Step 4: Simplify right side
    564,816.23x = 239,035,859,936.43
  5. Step 5: Solve for x
    x = 239,035,859,936.43/564,816.23
  6. Step 6: Final answer
    x = 423,209.97

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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.