Home / 777,556.12-1,073,022.66-438,133.72

Finding the Fourth Proportional to 777,556.12, 1,073,022.66 and 438,133.72

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Solution

The fourth proportional to 777,556.12, 1,073,022.66 and 438,133.72 is: 604,621.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,556.12 : 1,073,022.66 = 438,133.72 : x
  2. Step 2: Convert to fraction form
    777,556.12/1,073,022.66 = 438,133.72/x
  3. Step 3: Cross multiply
    777,556.12x = 1,073,022.66 × 438,133.72
  4. Step 4: Simplify right side
    777,556.12x = 470,127,409,670.10
  5. Step 5: Solve for x
    x = 470,127,409,670.10/777,556.12
  6. Step 6: Final answer
    x = 604,621.84

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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.