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Finding the Fourth Proportional to 683,457.48, 943,011.72 and 396,804.96

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Solution

The fourth proportional to 683,457.48, 943,011.72 and 396,804.96 is: 547,498.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,457.48 : 943,011.72 = 396,804.96 : x
  2. Step 2: Convert to fraction form
    683,457.48/943,011.72 = 396,804.96/x
  3. Step 3: Cross multiply
    683,457.48x = 943,011.72 × 396,804.96
  4. Step 4: Simplify right side
    683,457.48x = 374,191,727,834.13
  5. Step 5: Solve for x
    x = 374,191,727,834.13/683,457.48
  6. Step 6: Final answer
    x = 547,498.18

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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.