Home / 1,376,999.60-2,065,499.40-430,368.80

Finding the Fourth Proportional to 1,376,999.60, 2,065,499.40 and 430,368.80

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Solution

The fourth proportional to 1,376,999.60, 2,065,499.40 and 430,368.80 is: 645,553.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,999.60 : 2,065,499.40 = 430,368.80 : x
  2. Step 2: Convert to fraction form
    1,376,999.60/2,065,499.40 = 430,368.80/x
  3. Step 3: Cross multiply
    1,376,999.60x = 2,065,499.40 × 430,368.80
  4. Step 4: Simplify right side
    1,376,999.60x = 888,926,498,178.72
  5. Step 5: Solve for x
    x = 888,926,498,178.72/1,376,999.60
  6. Step 6: Final answer
    x = 645,553.20

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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.