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Finding the Fourth Proportional to 577,860.50, 797,432.13 and 319,730.72

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Solution

The fourth proportional to 577,860.50, 797,432.13 and 319,730.72 is: 441,219.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,860.50 : 797,432.13 = 319,730.72 : x
  2. Step 2: Convert to fraction form
    577,860.50/797,432.13 = 319,730.72/x
  3. Step 3: Cross multiply
    577,860.50x = 797,432.13 × 319,730.72
  4. Step 4: Simplify right side
    577,860.50x = 254,963,545,088.87
  5. Step 5: Solve for x
    x = 254,963,545,088.87/577,860.50
  6. Step 6: Final answer
    x = 441,219.89

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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.