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Finding the Fourth Proportional to 577,484.53, 796,907.75 and 315,830.89

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Solution

The fourth proportional to 577,484.53, 796,907.75 and 315,830.89 is: 435,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,484.53 : 796,907.75 = 315,830.89 : x
  2. Step 2: Convert to fraction form
    577,484.53/796,907.75 = 315,830.89/x
  3. Step 3: Cross multiply
    577,484.53x = 796,907.75 × 315,830.89
  4. Step 4: Simplify right side
    577,484.53x = 251,688,079,945.86
  5. Step 5: Solve for x
    x = 251,688,079,945.86/577,484.53
  6. Step 6: Final answer
    x = 435,835.19

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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.