Home / 918,707.94-1,267,783.77-505,241.15

Finding the Fourth Proportional to 918,707.94, 1,267,783.77 and 505,241.15

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Solution

The fourth proportional to 918,707.94, 1,267,783.77 and 505,241.15 is: 697,214.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,707.94 : 1,267,783.77 = 505,241.15 : x
  2. Step 2: Convert to fraction form
    918,707.94/1,267,783.77 = 505,241.15/x
  3. Step 3: Cross multiply
    918,707.94x = 1,267,783.77 × 505,241.15
  4. Step 4: Simplify right side
    918,707.94x = 640,536,523,567.22
  5. Step 5: Solve for x
    x = 640,536,523,567.22/918,707.94
  6. Step 6: Final answer
    x = 697,214.53

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1.5x scale

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.