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Finding the Fourth Proportional to 492,070.08, 679,106.91 and 301,209.60

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Solution

The fourth proportional to 492,070.08, 679,106.91 and 301,209.60 is: 415,699.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,070.08 : 679,106.91 = 301,209.60 : x
  2. Step 2: Convert to fraction form
    492,070.08/679,106.91 = 301,209.60/x
  3. Step 3: Cross multiply
    492,070.08x = 679,106.91 × 301,209.60
  4. Step 4: Simplify right side
    492,070.08x = 204,553,520,718.34
  5. Step 5: Solve for x
    x = 204,553,520,718.34/492,070.08
  6. Step 6: Final answer
    x = 415,699.98

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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.