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Finding the Fourth Proportional to 703,298.61, 970,550.91 and 381,016.89

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Solution

The fourth proportional to 703,298.61, 970,550.91 and 381,016.89 is: 525,802.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,298.61 : 970,550.91 = 381,016.89 : x
  2. Step 2: Convert to fraction form
    703,298.61/970,550.91 = 381,016.89/x
  3. Step 3: Cross multiply
    703,298.61x = 970,550.91 × 381,016.89
  4. Step 4: Simplify right side
    703,298.61x = 369,796,289,314.87
  5. Step 5: Solve for x
    x = 369,796,289,314.87/703,298.61
  6. Step 6: Final answer
    x = 525,802.67

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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.