Home / 430,720.61-646,224.77-190,801.91

Finding the Fourth Proportional to 430,720.61, 646,224.77 and 190,801.91

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Solution

The fourth proportional to 430,720.61, 646,224.77 and 190,801.91 is: 286,266.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,720.61 : 646,224.77 = 190,801.91 : x
  2. Step 2: Convert to fraction form
    430,720.61/646,224.77 = 190,801.91/x
  3. Step 3: Cross multiply
    430,720.61x = 646,224.77 × 190,801.91
  4. Step 4: Simplify right side
    430,720.61x = 123,300,922,497.88
  5. Step 5: Solve for x
    x = 123,300,922,497.88/430,720.61
  6. Step 6: Final answer
    x = 286,266.60

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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.