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Finding the Fourth Proportional to 615,855.40, 924,090.30 and 349,820.20

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Solution

The fourth proportional to 615,855.40, 924,090.30 and 349,820.20 is: 524,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,855.40 : 924,090.30 = 349,820.20 : x
  2. Step 2: Convert to fraction form
    615,855.40/924,090.30 = 349,820.20/x
  3. Step 3: Cross multiply
    615,855.40x = 924,090.30 × 349,820.20
  4. Step 4: Simplify right side
    615,855.40x = 323,265,453,564.06
  5. Step 5: Solve for x
    x = 323,265,453,564.06/615,855.40
  6. Step 6: Final answer
    x = 524,904.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.