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Finding the Fourth Proportional to 703,017.01, 970,158.30 and 380,719.63

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Solution

The fourth proportional to 703,017.01, 970,158.30 and 380,719.63 is: 525,390.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,017.01 : 970,158.30 = 380,719.63 : x
  2. Step 2: Convert to fraction form
    703,017.01/970,158.30 = 380,719.63/x
  3. Step 3: Cross multiply
    703,017.01x = 970,158.30 × 380,719.63
  4. Step 4: Simplify right side
    703,017.01x = 369,358,309,017.43
  5. Step 5: Solve for x
    x = 369,358,309,017.43/703,017.01
  6. Step 6: Final answer
    x = 525,390.29

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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.