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Finding the Fourth Proportional to 634,606.63, 875,752.05 and 344,217.45

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Solution

The fourth proportional to 634,606.63, 875,752.05 and 344,217.45 is: 475,017.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,606.63 : 875,752.05 = 344,217.45 : x
  2. Step 2: Convert to fraction form
    634,606.63/875,752.05 = 344,217.45/x
  3. Step 3: Cross multiply
    634,606.63x = 875,752.05 × 344,217.45
  4. Step 4: Simplify right side
    634,606.63x = 301,449,140,495.67
  5. Step 5: Solve for x
    x = 301,449,140,495.67/634,606.63
  6. Step 6: Final answer
    x = 475,017.32

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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.