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Finding the Fourth Proportional to 978,457.24, 1,466,945.65 and 641,582.70

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Solution

The fourth proportional to 978,457.24, 1,466,945.65 and 641,582.70 is: 961,888.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,457.24 : 1,466,945.65 = 641,582.70 : x
  2. Step 2: Convert to fraction form
    978,457.24/1,466,945.65 = 641,582.70/x
  3. Step 3: Cross multiply
    978,457.24x = 1,466,945.65 × 641,582.70
  4. Step 4: Simplify right side
    978,457.24x = 941,166,950,880.26
  5. Step 5: Solve for x
    x = 941,166,950,880.26/978,457.24
  6. Step 6: Final answer
    x = 961,888.69

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