Home / 648,015.10-973,189.05-470,722.30

Finding the Fourth Proportional to 648,015.10, 973,189.05 and 470,722.30

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Solution

The fourth proportional to 648,015.10, 973,189.05 and 470,722.30 is: 706,930.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,015.10 : 973,189.05 = 470,722.30 : x
  2. Step 2: Convert to fraction form
    648,015.10/973,189.05 = 470,722.30/x
  3. Step 3: Cross multiply
    648,015.10x = 973,189.05 × 470,722.30
  4. Step 4: Simplify right side
    648,015.10x = 458,101,787,950.82
  5. Step 5: Solve for x
    x = 458,101,787,950.82/648,015.10
  6. Step 6: Final answer
    x = 706,930.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.