Home / 771,378.96-1,157,814.75-372,300.67

Finding the Fourth Proportional to 771,378.96, 1,157,814.75 and 372,300.67

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Solution

The fourth proportional to 771,378.96, 1,157,814.75 and 372,300.67 is: 558,811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,378.96 : 1,157,814.75 = 372,300.67 : x
  2. Step 2: Convert to fraction form
    771,378.96/1,157,814.75 = 372,300.67/x
  3. Step 3: Cross multiply
    771,378.96x = 1,157,814.75 × 372,300.67
  4. Step 4: Simplify right side
    771,378.96x = 431,055,210,004.28
  5. Step 5: Solve for x
    x = 431,055,210,004.28/771,378.96
  6. Step 6: Final answer
    x = 558,811.21

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1.5x scale

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.