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Finding the Fourth Proportional to 670,445.30, 925,253.82 and 380,080.01

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Solution

The fourth proportional to 670,445.30, 925,253.82 and 380,080.01 is: 524,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,445.30 : 925,253.82 = 380,080.01 : x
  2. Step 2: Convert to fraction form
    670,445.30/925,253.82 = 380,080.01/x
  3. Step 3: Cross multiply
    670,445.30x = 925,253.82 × 380,080.01
  4. Step 4: Simplify right side
    670,445.30x = 351,670,483,471.27
  5. Step 5: Solve for x
    x = 351,670,483,471.27/670,445.30
  6. Step 6: Final answer
    x = 524,532.70

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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.