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Finding the Fourth Proportional to 670,236.88, 924,903.48 and 368,428.72

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Solution

The fourth proportional to 670,236.88, 924,903.48 and 368,428.72 is: 508,418.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,236.88 : 924,903.48 = 368,428.72 : x
  2. Step 2: Convert to fraction form
    670,236.88/924,903.48 = 368,428.72/x
  3. Step 3: Cross multiply
    670,236.88x = 924,903.48 × 368,428.72
  4. Step 4: Simplify right side
    670,236.88x = 340,761,005,259.95
  5. Step 5: Solve for x
    x = 340,761,005,259.95/670,236.88
  6. Step 6: Final answer
    x = 508,418.76

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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.