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Finding the Fourth Proportional to 635,917.85, 876,689.74 and 507,292.88

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Solution

The fourth proportional to 635,917.85, 876,689.74 and 507,292.88 is: 699,364.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,917.85 : 876,689.74 = 507,292.88 : x
  2. Step 2: Convert to fraction form
    635,917.85/876,689.74 = 507,292.88/x
  3. Step 3: Cross multiply
    635,917.85x = 876,689.74 × 507,292.88
  4. Step 4: Simplify right side
    635,917.85x = 444,738,460,534.59
  5. Step 5: Solve for x
    x = 444,738,460,534.59/635,917.85
  6. Step 6: Final answer
    x = 699,364.65

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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.