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Finding the Fourth Proportional to 670,370.96, 925,115.40 and 368,584.40

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Solution

The fourth proportional to 670,370.96, 925,115.40 and 368,584.40 is: 508,648.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,370.96 : 925,115.40 = 368,584.40 : x
  2. Step 2: Convert to fraction form
    670,370.96/925,115.40 = 368,584.40/x
  3. Step 3: Cross multiply
    670,370.96x = 925,115.40 × 368,584.40
  4. Step 4: Simplify right side
    670,370.96x = 340,983,104,639.76
  5. Step 5: Solve for x
    x = 340,983,104,639.76/670,370.96
  6. Step 6: Final answer
    x = 508,648.38

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Double scale
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Similar ratio
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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.