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Finding the Fourth Proportional to 634,383.18, 875,460.06 and 347,900.76

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Solution

The fourth proportional to 634,383.18, 875,460.06 and 347,900.76 is: 480,109.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,383.18 : 875,460.06 = 347,900.76 : x
  2. Step 2: Convert to fraction form
    634,383.18/875,460.06 = 347,900.76/x
  3. Step 3: Cross multiply
    634,383.18x = 875,460.06 × 347,900.76
  4. Step 4: Simplify right side
    634,383.18x = 304,573,220,223.65
  5. Step 5: Solve for x
    x = 304,573,220,223.65/634,383.18
  6. Step 6: Final answer
    x = 480,109.23

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Double scale
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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.