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Finding the Fourth Proportional to 504,053.52, 695,694.60 and 289,338.72

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Solution

The fourth proportional to 504,053.52, 695,694.60 and 289,338.72 is: 399,345.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,053.52 : 695,694.60 = 289,338.72 : x
  2. Step 2: Convert to fraction form
    504,053.52/695,694.60 = 289,338.72/x
  3. Step 3: Cross multiply
    504,053.52x = 695,694.60 × 289,338.72
  4. Step 4: Simplify right side
    504,053.52x = 201,291,385,074.91
  5. Step 5: Solve for x
    x = 201,291,385,074.91/504,053.52
  6. Step 6: Final answer
    x = 399,345.26

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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.