Home / 1,328,786.02-1,993,495.81-430,228.02

Finding the Fourth Proportional to 1,328,786.02, 1,993,495.81 and 430,228.02

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Solution

The fourth proportional to 1,328,786.02, 1,993,495.81 and 430,228.02 is: 645,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,786.02 : 1,993,495.81 = 430,228.02 : x
  2. Step 2: Convert to fraction form
    1,328,786.02/1,993,495.81 = 430,228.02/x
  3. Step 3: Cross multiply
    1,328,786.02x = 1,993,495.81 × 430,228.02
  4. Step 4: Simplify right side
    1,328,786.02x = 857,657,762,421.31
  5. Step 5: Solve for x
    x = 857,657,762,421.31/1,328,786.02
  6. Step 6: Final answer
    x = 645,444.60

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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.