Home / 918,588.05-1,267,656.43-505,151.48

Finding the Fourth Proportional to 918,588.05, 1,267,656.43 and 505,151.48

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Solution

The fourth proportional to 918,588.05, 1,267,656.43 and 505,151.48 is: 697,111.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,588.05 : 1,267,656.43 = 505,151.48 : x
  2. Step 2: Convert to fraction form
    918,588.05/1,267,656.43 = 505,151.48/x
  3. Step 3: Cross multiply
    918,588.05x = 1,267,656.43 × 505,151.48
  4. Step 4: Simplify right side
    918,588.05x = 640,358,523,652.28
  5. Step 5: Solve for x
    x = 640,358,523,652.28/918,588.05
  6. Step 6: Final answer
    x = 697,111.75

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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.