Home / 1,139,240.32-1,709,030.37-419,526.68

Finding the Fourth Proportional to 1,139,240.32, 1,709,030.37 and 419,526.68

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Solution

The fourth proportional to 1,139,240.32, 1,709,030.37 and 419,526.68 is: 629,352.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,240.32 : 1,709,030.37 = 419,526.68 : x
  2. Step 2: Convert to fraction form
    1,139,240.32/1,709,030.37 = 419,526.68/x
  3. Step 3: Cross multiply
    1,139,240.32x = 1,709,030.37 × 419,526.68
  4. Step 4: Simplify right side
    1,139,240.32x = 716,983,830,173.35
  5. Step 5: Solve for x
    x = 716,983,830,173.35/1,139,240.32
  6. Step 6: Final answer
    x = 629,352.58

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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.