Home / 1,112,419.02-1,667,638.95-402,289.30

Finding the Fourth Proportional to 1,112,419.02, 1,667,638.95 and 402,289.30

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Solution

The fourth proportional to 1,112,419.02, 1,667,638.95 and 402,289.30 is: 603,076.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,419.02 : 1,667,638.95 = 402,289.30 : x
  2. Step 2: Convert to fraction form
    1,112,419.02/1,667,638.95 = 402,289.30/x
  3. Step 3: Cross multiply
    1,112,419.02x = 1,667,638.95 × 402,289.30
  4. Step 4: Simplify right side
    1,112,419.02x = 670,873,305,848.24
  5. Step 5: Solve for x
    x = 670,873,305,848.24/1,112,419.02
  6. Step 6: Final answer
    x = 603,076.08

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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.