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Finding the Fourth Proportional to 559,367.84, 838,351.20 and 440,570

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Solution

The fourth proportional to 559,367.84, 838,351.20 and 440,570 is: 660,303.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,367.84 : 838,351.20 = 440,570 : x
  2. Step 2: Convert to fraction form
    559,367.84/838,351.20 = 440,570/x
  3. Step 3: Cross multiply
    559,367.84x = 838,351.20 × 440,570
  4. Step 4: Simplify right side
    559,367.84x = 369,352,388,184
  5. Step 5: Solve for x
    x = 369,352,388,184/559,367.84
  6. Step 6: Final answer
    x = 660,303.22

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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.