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Finding the Fourth Proportional to 501,699.24, 692,345.42 and 286,843.81

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Solution

The fourth proportional to 501,699.24, 692,345.42 and 286,843.81 is: 395,844.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,699.24 : 692,345.42 = 286,843.81 : x
  2. Step 2: Convert to fraction form
    501,699.24/692,345.42 = 286,843.81/x
  3. Step 3: Cross multiply
    501,699.24x = 692,345.42 × 286,843.81
  4. Step 4: Simplify right side
    501,699.24x = 198,594,996,983.85
  5. Step 5: Solve for x
    x = 198,594,996,983.85/501,699.24
  6. Step 6: Final answer
    x = 395,844.72

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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.