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Finding the Fourth Proportional to 670,080, 924,710.40 and 368,274

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Solution

The fourth proportional to 670,080, 924,710.40 and 368,274 is: 508,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,080 : 924,710.40 = 368,274 : x
  2. Step 2: Convert to fraction form
    670,080/924,710.40 = 368,274/x
  3. Step 3: Cross multiply
    670,080x = 924,710.40 × 368,274
  4. Step 4: Simplify right side
    670,080x = 340,546,797,849.60
  5. Step 5: Solve for x
    x = 340,546,797,849.60/670,080
  6. Step 6: Final answer
    x = 508,218.12

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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.