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Finding the Fourth Proportional to 474,428.75, 654,692.42 and 283,547.39

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Solution

The fourth proportional to 474,428.75, 654,692.42 and 283,547.39 is: 391,283.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,428.75 : 654,692.42 = 283,547.39 : x
  2. Step 2: Convert to fraction form
    474,428.75/654,692.42 = 283,547.39/x
  3. Step 3: Cross multiply
    474,428.75x = 654,692.42 × 283,547.39
  4. Step 4: Simplify right side
    474,428.75x = 185,636,324,379.19
  5. Step 5: Solve for x
    x = 185,636,324,379.19/474,428.75
  6. Step 6: Final answer
    x = 391,283.89

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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.