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Finding the Fourth Proportional to 702,949.32, 970,070.58 and 380,659.77

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Solution

The fourth proportional to 702,949.32, 970,070.58 and 380,659.77 is: 525,310.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,949.32 : 970,070.58 = 380,659.77 : x
  2. Step 2: Convert to fraction form
    702,949.32/970,070.58 = 380,659.77/x
  3. Step 3: Cross multiply
    702,949.32x = 970,070.58 × 380,659.77
  4. Step 4: Simplify right side
    702,949.32x = 369,266,843,866.57
  5. Step 5: Solve for x
    x = 369,266,843,866.57/702,949.32
  6. Step 6: Final answer
    x = 525,310.76

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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.