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Finding the Fourth Proportional to 670,811.76, 925,731.18 and 364,894.20

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Solution

The fourth proportional to 670,811.76, 925,731.18 and 364,894.20 is: 503,559.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,811.76 : 925,731.18 = 364,894.20 : x
  2. Step 2: Convert to fraction form
    670,811.76/925,731.18 = 364,894.20/x
  3. Step 3: Cross multiply
    670,811.76x = 925,731.18 × 364,894.20
  4. Step 4: Simplify right side
    670,811.76x = 337,793,938,341.16
  5. Step 5: Solve for x
    x = 337,793,938,341.16/670,811.76
  6. Step 6: Final answer
    x = 503,559.95

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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.