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Finding the Fourth Proportional to 703,158.30, 970,358.49 and 380,868.51

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Solution

The fourth proportional to 703,158.30, 970,358.49 and 380,868.51 is: 525,598.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,158.30 : 970,358.49 = 380,868.51 : x
  2. Step 2: Convert to fraction form
    703,158.30/970,358.49 = 380,868.51/x
  3. Step 3: Cross multiply
    703,158.30x = 970,358.49 × 380,868.51
  4. Step 4: Simplify right side
    703,158.30x = 369,578,995,890.99
  5. Step 5: Solve for x
    x = 369,578,995,890.99/703,158.30
  6. Step 6: Final answer
    x = 525,598.57

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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.