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Finding the Fourth Proportional to 700,547, 966,755.94 and 398,741

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Solution

The fourth proportional to 700,547, 966,755.94 and 398,741 is: 550,263.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,547 : 966,755.94 = 398,741 : x
  2. Step 2: Convert to fraction form
    700,547/966,755.94 = 398,741/x
  3. Step 3: Cross multiply
    700,547x = 966,755.94 × 398,741
  4. Step 4: Simplify right side
    700,547x = 385,485,230,271.54
  5. Step 5: Solve for x
    x = 385,485,230,271.54/700,547
  6. Step 6: Final answer
    x = 550,263.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.