Home / 1,112,420.02-1,667,640.45-402,290.30

Finding the Fourth Proportional to 1,112,420.02, 1,667,640.45 and 402,290.30

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Solution

The fourth proportional to 1,112,420.02, 1,667,640.45 and 402,290.30 is: 603,077.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,420.02 : 1,667,640.45 = 402,290.30 : x
  2. Step 2: Convert to fraction form
    1,112,420.02/1,667,640.45 = 402,290.30/x
  3. Step 3: Cross multiply
    1,112,420.02x = 1,667,640.45 × 402,290.30
  4. Step 4: Simplify right side
    1,112,420.02x = 670,875,576,922.64
  5. Step 5: Solve for x
    x = 670,875,576,922.64/1,112,420.02
  6. Step 6: Final answer
    x = 603,077.58

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1.5x scale

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.