Home / 670,244.40-1,005,366.60-386,809.20

Finding the Fourth Proportional to 670,244.40, 1,005,366.60 and 386,809.20

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Solution

The fourth proportional to 670,244.40, 1,005,366.60 and 386,809.20 is: 580,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,244.40 : 1,005,366.60 = 386,809.20 : x
  2. Step 2: Convert to fraction form
    670,244.40/1,005,366.60 = 386,809.20/x
  3. Step 3: Cross multiply
    670,244.40x = 1,005,366.60 × 386,809.20
  4. Step 4: Simplify right side
    670,244.40x = 388,885,050,252.72
  5. Step 5: Solve for x
    x = 388,885,050,252.72/670,244.40
  6. Step 6: Final answer
    x = 580,213.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.