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Finding the Fourth Proportional to 577,359.60, 796,731.15 and 315,710.10

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Solution

The fourth proportional to 577,359.60, 796,731.15 and 315,710.10 is: 435,666.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,359.60 : 796,731.15 = 315,710.10 : x
  2. Step 2: Convert to fraction form
    577,359.60/796,731.15 = 315,710.10/x
  3. Step 3: Cross multiply
    577,359.60x = 796,731.15 × 315,710.10
  4. Step 4: Simplify right side
    577,359.60x = 251,536,071,039.62
  5. Step 5: Solve for x
    x = 251,536,071,039.62/577,359.60
  6. Step 6: Final answer
    x = 435,666.21

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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.