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Finding the Fourth Proportional to 670,799.88, 925,699.32 and 380,466.72

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Solution

The fourth proportional to 670,799.88, 925,699.32 and 380,466.72 is: 525,041.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,799.88 : 925,699.32 = 380,466.72 : x
  2. Step 2: Convert to fraction form
    670,799.88/925,699.32 = 380,466.72/x
  3. Step 3: Cross multiply
    670,799.88x = 925,699.32 × 380,466.72
  4. Step 4: Simplify right side
    670,799.88x = 352,197,783,986.63
  5. Step 5: Solve for x
    x = 352,197,783,986.63/670,799.88
  6. Step 6: Final answer
    x = 525,041.51

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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.