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Finding the Fourth Proportional to 559,341.81, 838,261.83 and 306,240.30

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Solution

The fourth proportional to 559,341.81, 838,261.83 and 306,240.30 is: 458,949.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,341.81 : 838,261.83 = 306,240.30 : x
  2. Step 2: Convert to fraction form
    559,341.81/838,261.83 = 306,240.30/x
  3. Step 3: Cross multiply
    559,341.81x = 838,261.83 × 306,240.30
  4. Step 4: Simplify right side
    559,341.81x = 256,709,554,297.75
  5. Step 5: Solve for x
    x = 256,709,554,297.75/559,341.81
  6. Step 6: Final answer
    x = 458,949.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.