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Finding the Fourth Proportional to 662,017.60, 992,005.80 and 492,743.80

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Solution

The fourth proportional to 662,017.60, 992,005.80 and 492,743.80 is: 738,356.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,017.60 : 992,005.80 = 492,743.80 : x
  2. Step 2: Convert to fraction form
    662,017.60/992,005.80 = 492,743.80/x
  3. Step 3: Cross multiply
    662,017.60x = 992,005.80 × 492,743.80
  4. Step 4: Simplify right side
    662,017.60x = 488,804,707,514.04
  5. Step 5: Solve for x
    x = 488,804,707,514.04/662,017.60
  6. Step 6: Final answer
    x = 738,356.06

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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.