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Finding the Fourth Proportional to 702,935.20, 970,055.18 and 380,645.30

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Solution

The fourth proportional to 702,935.20, 970,055.18 and 380,645.30 is: 525,293.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,935.20 : 970,055.18 = 380,645.30 : x
  2. Step 2: Convert to fraction form
    702,935.20/970,055.18 = 380,645.30/x
  3. Step 3: Cross multiply
    702,935.20x = 970,055.18 × 380,645.30
  4. Step 4: Simplify right side
    702,935.20x = 369,246,945,007.65
  5. Step 5: Solve for x
    x = 369,246,945,007.65/702,935.20
  6. Step 6: Final answer
    x = 525,293.01

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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.