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Finding the Fourth Proportional to 522,175.88, 720,548.48 and 307,303.12

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Solution

The fourth proportional to 522,175.88, 720,548.48 and 307,303.12 is: 424,046.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,175.88 : 720,548.48 = 307,303.12 : x
  2. Step 2: Convert to fraction form
    522,175.88/720,548.48 = 307,303.12/x
  3. Step 3: Cross multiply
    522,175.88x = 720,548.48 × 307,303.12
  4. Step 4: Simplify right side
    522,175.88x = 221,426,796,015.26
  5. Step 5: Solve for x
    x = 221,426,796,015.26/522,175.88
  6. Step 6: Final answer
    x = 424,046.39

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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.