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Finding the Fourth Proportional to 634,139.34, 875,167.37 and 347,714.79

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Solution

The fourth proportional to 634,139.34, 875,167.37 and 347,714.79 is: 479,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,139.34 : 875,167.37 = 347,714.79 : x
  2. Step 2: Convert to fraction form
    634,139.34/875,167.37 = 347,714.79/x
  3. Step 3: Cross multiply
    634,139.34x = 875,167.37 × 347,714.79
  4. Step 4: Simplify right side
    634,139.34x = 304,308,632,159.99
  5. Step 5: Solve for x
    x = 304,308,632,159.99/634,139.34
  6. Step 6: Final answer
    x = 479,876.60

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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.