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Finding the Fourth Proportional to 565,589.75, 780,518.91 and 307,467.18

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Solution

The fourth proportional to 565,589.75, 780,518.91 and 307,467.18 is: 424,307.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,589.75 : 780,518.91 = 307,467.18 : x
  2. Step 2: Convert to fraction form
    565,589.75/780,518.91 = 307,467.18/x
  3. Step 3: Cross multiply
    565,589.75x = 780,518.91 × 307,467.18
  4. Step 4: Simplify right side
    565,589.75x = 239,983,948,194.37
  5. Step 5: Solve for x
    x = 239,983,948,194.37/565,589.75
  6. Step 6: Final answer
    x = 424,307.46

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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.