Home / 1,628,475.85-2,442,734.55-430,387.81

Finding the Fourth Proportional to 1,628,475.85, 2,442,734.55 and 430,387.81

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Solution

The fourth proportional to 1,628,475.85, 2,442,734.55 and 430,387.81 is: 645,587.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628,475.85 : 2,442,734.55 = 430,387.81 : x
  2. Step 2: Convert to fraction form
    1,628,475.85/2,442,734.55 = 430,387.81/x
  3. Step 3: Cross multiply
    1,628,475.85x = 2,442,734.55 × 430,387.81
  4. Step 4: Simplify right side
    1,628,475.85x = 1,051,323,173,385.84
  5. Step 5: Solve for x
    x = 1,051,323,173,385.84/1,628,475.85
  6. Step 6: Final answer
    x = 645,587.21

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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.