Home / 810,242.45-1,118,157.13-447,689.67

Finding the Fourth Proportional to 810,242.45, 1,118,157.13 and 447,689.67

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Solution

The fourth proportional to 810,242.45, 1,118,157.13 and 447,689.67 is: 617,824.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,242.45 : 1,118,157.13 = 447,689.67 : x
  2. Step 2: Convert to fraction form
    810,242.45/1,118,157.13 = 447,689.67/x
  3. Step 3: Cross multiply
    810,242.45x = 1,118,157.13 × 447,689.67
  4. Step 4: Simplify right side
    810,242.45x = 500,587,390,386.12
  5. Step 5: Solve for x
    x = 500,587,390,386.12/810,242.45
  6. Step 6: Final answer
    x = 617,824.20

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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.