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Finding the Fourth Proportional to 703,544.40, 970,895.16 and 381,254.76

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Solution

The fourth proportional to 703,544.40, 970,895.16 and 381,254.76 is: 526,133.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,544.40 : 970,895.16 = 381,254.76 : x
  2. Step 2: Convert to fraction form
    703,544.40/970,895.16 = 381,254.76/x
  3. Step 3: Cross multiply
    703,544.40x = 970,895.16 × 381,254.76
  4. Step 4: Simplify right side
    703,544.40x = 370,158,401,210.96
  5. Step 5: Solve for x
    x = 370,158,401,210.96/703,544.40
  6. Step 6: Final answer
    x = 526,133.68

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Double scale
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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.