Home / 1,153,019.10-1,591,313.14-669,487.98

Finding the Fourth Proportional to 1,153,019.10, 1,591,313.14 and 669,487.98

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Solution

The fourth proportional to 1,153,019.10, 1,591,313.14 and 669,487.98 is: 923,978.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,019.10 : 1,591,313.14 = 669,487.98 : x
  2. Step 2: Convert to fraction form
    1,153,019.10/1,591,313.14 = 669,487.98/x
  3. Step 3: Cross multiply
    1,153,019.10x = 1,591,313.14 × 669,487.98
  4. Step 4: Simplify right side
    1,153,019.10x = 1,065,365,019,646.06
  5. Step 5: Solve for x
    x = 1,065,365,019,646.06/1,153,019.10
  6. Step 6: Final answer
    x = 923,978.64

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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.