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Finding the Fourth Proportional to 501,667.59, 692,104.21 and 286,692.33

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Solution

The fourth proportional to 501,667.59, 692,104.21 and 286,692.33 is: 395,522.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,667.59 : 692,104.21 = 286,692.33 : x
  2. Step 2: Convert to fraction form
    501,667.59/692,104.21 = 286,692.33/x
  3. Step 3: Cross multiply
    501,667.59x = 692,104.21 × 286,692.33
  4. Step 4: Simplify right side
    501,667.59x = 198,420,968,567.71
  5. Step 5: Solve for x
    x = 198,420,968,567.71/501,667.59
  6. Step 6: Final answer
    x = 395,522.80

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1.5x scale

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.