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Finding the Fourth Proportional to 501,665.08, 692,298.32 and 286,809.80

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Solution

The fourth proportional to 501,665.08, 692,298.32 and 286,809.80 is: 395,797.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,665.08 : 692,298.32 = 286,809.80 : x
  2. Step 2: Convert to fraction form
    501,665.08/692,298.32 = 286,809.80/x
  3. Step 3: Cross multiply
    501,665.08x = 692,298.32 × 286,809.80
  4. Step 4: Simplify right side
    501,665.08x = 198,557,942,699.54
  5. Step 5: Solve for x
    x = 198,557,942,699.54/501,665.08
  6. Step 6: Final answer
    x = 395,797.82

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1.5x scale

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.