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Finding the Fourth Proportional to 702,920.10, 970,034.36 and 380,630.23

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Solution

The fourth proportional to 702,920.10, 970,034.36 and 380,630.23 is: 525,272.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,920.10 : 970,034.36 = 380,630.23 : x
  2. Step 2: Convert to fraction form
    702,920.10/970,034.36 = 380,630.23/x
  3. Step 3: Cross multiply
    702,920.10x = 970,034.36 × 380,630.23
  4. Step 4: Simplify right side
    702,920.10x = 369,224,401,554.70
  5. Step 5: Solve for x
    x = 369,224,401,554.70/702,920.10
  6. Step 6: Final answer
    x = 525,272.22

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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.