Home / 919,412.88-1,378,849.88-358,313.36

Finding the Fourth Proportional to 919,412.88, 1,378,849.88 and 358,313.36

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Solution

The fourth proportional to 919,412.88, 1,378,849.88 and 358,313.36 is: 537,365.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,412.88 : 1,378,849.88 = 358,313.36 : x
  2. Step 2: Convert to fraction form
    919,412.88/1,378,849.88 = 358,313.36/x
  3. Step 3: Cross multiply
    919,412.88x = 1,378,849.88 × 358,313.36
  4. Step 4: Simplify right side
    919,412.88x = 494,060,333,438.40
  5. Step 5: Solve for x
    x = 494,060,333,438.40/919,412.88
  6. Step 6: Final answer
    x = 537,365.03

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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.