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Finding the Fourth Proportional to 504,055.52, 695,697.36 and 289,340.72

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Solution

The fourth proportional to 504,055.52, 695,697.36 and 289,340.72 is: 399,348.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,055.52 : 695,697.36 = 289,340.72 : x
  2. Step 2: Convert to fraction form
    504,055.52/695,697.36 = 289,340.72/x
  3. Step 3: Cross multiply
    504,055.52x = 695,697.36 × 289,340.72
  4. Step 4: Simplify right side
    504,055.52x = 201,293,575,044.50
  5. Step 5: Solve for x
    x = 201,293,575,044.50/504,055.52
  6. Step 6: Final answer
    x = 399,348.02

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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.