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Finding the Fourth Proportional to 511,897.50, 767,248.43 and 385,130.52

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Solution

The fourth proportional to 511,897.50, 767,248.43 and 385,130.52 is: 577,246.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,897.50 : 767,248.43 = 385,130.52 : x
  2. Step 2: Convert to fraction form
    511,897.50/767,248.43 = 385,130.52/x
  3. Step 3: Cross multiply
    511,897.50x = 767,248.43 × 385,130.52
  4. Step 4: Simplify right side
    511,897.50x = 295,490,784,889.43
  5. Step 5: Solve for x
    x = 295,490,784,889.43/511,897.50
  6. Step 6: Final answer
    x = 577,246.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.