Home / 1,230,353.28-1,845,518.85-388,905.30

Finding the Fourth Proportional to 1,230,353.28, 1,845,518.85 and 388,905.30

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Solution

The fourth proportional to 1,230,353.28, 1,845,518.85 and 388,905.30 is: 583,354.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,353.28 : 1,845,518.85 = 388,905.30 : x
  2. Step 2: Convert to fraction form
    1,230,353.28/1,845,518.85 = 388,905.30/x
  3. Step 3: Cross multiply
    1,230,353.28x = 1,845,518.85 × 388,905.30
  4. Step 4: Simplify right side
    1,230,353.28x = 717,732,062,014.91
  5. Step 5: Solve for x
    x = 717,732,062,014.91/1,230,353.28
  6. Step 6: Final answer
    x = 583,354.45

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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.