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Finding the Fourth Proportional to 577,431.23, 796,860.23 and 319,325.63

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Solution

The fourth proportional to 577,431.23, 796,860.23 and 319,325.63 is: 440,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,431.23 : 796,860.23 = 319,325.63 : x
  2. Step 2: Convert to fraction form
    577,431.23/796,860.23 = 319,325.63/x
  3. Step 3: Cross multiply
    577,431.23x = 796,860.23 × 319,325.63
  4. Step 4: Simplify right side
    577,431.23x = 254,457,889,385.77
  5. Step 5: Solve for x
    x = 254,457,889,385.77/577,431.23
  6. Step 6: Final answer
    x = 440,672.20

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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.