Home / 762,720.42-1,052,389.74-440,243.67

Finding the Fourth Proportional to 762,720.42, 1,052,389.74 and 440,243.67

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Solution

The fourth proportional to 762,720.42, 1,052,389.74 and 440,243.67 is: 607,441.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,720.42 : 1,052,389.74 = 440,243.67 : x
  2. Step 2: Convert to fraction form
    762,720.42/1,052,389.74 = 440,243.67/x
  3. Step 3: Cross multiply
    762,720.42x = 1,052,389.74 × 440,243.67
  4. Step 4: Simplify right side
    762,720.42x = 463,307,921,407.95
  5. Step 5: Solve for x
    x = 463,307,921,407.95/762,720.42
  6. Step 6: Final answer
    x = 607,441.35

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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.