Home / 1,539,607.56-2,308,622.81-820,359.15

Finding the Fourth Proportional to 1,539,607.56, 2,308,622.81 and 820,359.15

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Solution

The fourth proportional to 1,539,607.56, 2,308,622.81 and 820,359.15 is: 1,230,118.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,607.56 : 2,308,622.81 = 820,359.15 : x
  2. Step 2: Convert to fraction form
    1,539,607.56/2,308,622.81 = 820,359.15/x
  3. Step 3: Cross multiply
    1,539,607.56x = 2,308,622.81 × 820,359.15
  4. Step 4: Simplify right side
    1,539,607.56x = 1,893,899,841,980.42
  5. Step 5: Solve for x
    x = 1,893,899,841,980.42/1,539,607.56
  6. Step 6: Final answer
    x = 1,230,118.56

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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.