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Finding the Fourth Proportional to 501,655.48, 692,248.62 and 286,804.60

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Solution

The fourth proportional to 501,655.48, 692,248.62 and 286,804.60 is: 395,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,655.48 : 692,248.62 = 286,804.60 : x
  2. Step 2: Convert to fraction form
    501,655.48/692,248.62 = 286,804.60/x
  3. Step 3: Cross multiply
    501,655.48x = 692,248.62 × 286,804.60
  4. Step 4: Simplify right side
    501,655.48x = 198,540,088,559.65
  5. Step 5: Solve for x
    x = 198,540,088,559.65/501,655.48
  6. Step 6: Final answer
    x = 395,769.80

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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.