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Finding the Fourth Proportional to 515,817.08, 767,485.01 and 502,960.76

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Solution

The fourth proportional to 515,817.08, 767,485.01 and 502,960.76 is: 748,356.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,817.08 : 767,485.01 = 502,960.76 : x
  2. Step 2: Convert to fraction form
    515,817.08/767,485.01 = 502,960.76/x
  3. Step 3: Cross multiply
    515,817.08x = 767,485.01 × 502,960.76
  4. Step 4: Simplify right side
    515,817.08x = 386,014,843,918.21
  5. Step 5: Solve for x
    x = 386,014,843,918.21/515,817.08
  6. Step 6: Final answer
    x = 748,356.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.