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Finding the Fourth Proportional to 470,210.67, 648,854.75 and 276,626.07

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Solution

The fourth proportional to 470,210.67, 648,854.75 and 276,626.07 is: 381,722.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,210.67 : 648,854.75 = 276,626.07 : x
  2. Step 2: Convert to fraction form
    470,210.67/648,854.75 = 276,626.07/x
  3. Step 3: Cross multiply
    470,210.67x = 648,854.75 × 276,626.07
  4. Step 4: Simplify right side
    470,210.67x = 179,490,140,184.90
  5. Step 5: Solve for x
    x = 179,490,140,184.90/470,210.67
  6. Step 6: Final answer
    x = 381,722.81

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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.