Home / 908,786.61-1,254,119.24-500,888.67

Finding the Fourth Proportional to 908,786.61, 1,254,119.24 and 500,888.67

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Solution

The fourth proportional to 908,786.61, 1,254,119.24 and 500,888.67 is: 691,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,786.61 : 1,254,119.24 = 500,888.67 : x
  2. Step 2: Convert to fraction form
    908,786.61/1,254,119.24 = 500,888.67/x
  3. Step 3: Cross multiply
    908,786.61x = 1,254,119.24 × 500,888.67
  4. Step 4: Simplify right side
    908,786.61x = 628,174,118,145.01
  5. Step 5: Solve for x
    x = 628,174,118,145.01/908,786.61
  6. Step 6: Final answer
    x = 691,222.90

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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.