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Finding the Fourth Proportional to 555,682.08, 766,840.32 and 301,039.68

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Solution

The fourth proportional to 555,682.08, 766,840.32 and 301,039.68 is: 415,434.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,682.08 : 766,840.32 = 301,039.68 : x
  2. Step 2: Convert to fraction form
    555,682.08/766,840.32 = 301,039.68/x
  3. Step 3: Cross multiply
    555,682.08x = 766,840.32 × 301,039.68
  4. Step 4: Simplify right side
    555,682.08x = 230,849,364,543.90
  5. Step 5: Solve for x
    x = 230,849,364,543.90/555,682.08
  6. Step 6: Final answer
    x = 415,434.24

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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.