Home / 3,178,655.40-4,773,512.70-1,685,663.40

Finding the Fourth Proportional to 3,178,655.40, 4,773,512.70 and 1,685,663.40

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Solution

The fourth proportional to 3,178,655.40, 4,773,512.70 and 1,685,663.40 is: 2,531,427.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,655.40 : 4,773,512.70 = 1,685,663.40 : x
  2. Step 2: Convert to fraction form
    3,178,655.40/4,773,512.70 = 1,685,663.40/x
  3. Step 3: Cross multiply
    3,178,655.40x = 4,773,512.70 × 1,685,663.40
  4. Step 4: Simplify right side
    3,178,655.40x = 8,046,535,647,825.18
  5. Step 5: Solve for x
    x = 8,046,535,647,825.18/3,178,655.40
  6. Step 6: Final answer
    x = 2,531,427.49

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1.5x scale

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.