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Finding the Fourth Proportional to 634,113.56, 875,074.86 and 347,633.87

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Solution

The fourth proportional to 634,113.56, 875,074.86 and 347,633.87 is: 479,733.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,113.56 : 875,074.86 = 347,633.87 : x
  2. Step 2: Convert to fraction form
    634,113.56/875,074.86 = 347,633.87/x
  3. Step 3: Cross multiply
    634,113.56x = 875,074.86 × 347,633.87
  4. Step 4: Simplify right side
    634,113.56x = 304,205,655,746.13
  5. Step 5: Solve for x
    x = 304,205,655,746.13/634,113.56
  6. Step 6: Final answer
    x = 479,733.72

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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.