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Finding the Fourth Proportional to 702,720.14, 969,756.88 and 380,430.22

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Solution

The fourth proportional to 702,720.14, 969,756.88 and 380,430.22 is: 524,995.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,720.14 : 969,756.88 = 380,430.22 : x
  2. Step 2: Convert to fraction form
    702,720.14/969,756.88 = 380,430.22/x
  3. Step 3: Cross multiply
    702,720.14x = 969,756.88 × 380,430.22
  4. Step 4: Simplify right side
    702,720.14x = 368,924,823,204.91
  5. Step 5: Solve for x
    x = 368,924,823,204.91/702,720.14
  6. Step 6: Final answer
    x = 524,995.37

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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.