Home / 919,860.96-1,378,149.84-498,868.32

Finding the Fourth Proportional to 919,860.96, 1,378,149.84 and 498,868.32

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Solution

The fourth proportional to 919,860.96, 1,378,149.84 and 498,868.32 is: 747,412.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,860.96 : 1,378,149.84 = 498,868.32 : x
  2. Step 2: Convert to fraction form
    919,860.96/1,378,149.84 = 498,868.32/x
  3. Step 3: Cross multiply
    919,860.96x = 1,378,149.84 × 498,868.32
  4. Step 4: Simplify right side
    919,860.96x = 687,515,295,389.07
  5. Step 5: Solve for x
    x = 687,515,295,389.07/919,860.96
  6. Step 6: Final answer
    x = 747,412.19

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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.