Home / 1,628,116.32-2,442,291.12-430,026.69

Finding the Fourth Proportional to 1,628,116.32, 2,442,291.12 and 430,026.69

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Solution

The fourth proportional to 1,628,116.32, 2,442,291.12 and 430,026.69 is: 645,070.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628,116.32 : 2,442,291.12 = 430,026.69 : x
  2. Step 2: Convert to fraction form
    1,628,116.32/2,442,291.12 = 430,026.69/x
  3. Step 3: Cross multiply
    1,628,116.32x = 2,442,291.12 × 430,026.69
  4. Step 4: Simplify right side
    1,628,116.32x = 1,050,250,366,349.99
  5. Step 5: Solve for x
    x = 1,050,250,366,349.99/1,628,116.32
  6. Step 6: Final answer
    x = 645,070.84

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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.