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Finding the Fourth Proportional to 559,457.28, 839,393.28 and 260,098.56

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Solution

The fourth proportional to 559,457.28, 839,393.28 and 260,098.56 is: 390,244.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,457.28 : 839,393.28 = 260,098.56 : x
  2. Step 2: Convert to fraction form
    559,457.28/839,393.28 = 260,098.56/x
  3. Step 3: Cross multiply
    559,457.28x = 839,393.28 × 260,098.56
  4. Step 4: Simplify right side
    559,457.28x = 218,324,983,401.68
  5. Step 5: Solve for x
    x = 218,324,983,401.68/559,457.28
  6. Step 6: Final answer
    x = 390,244.24

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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.