Home / 782,405.10-1,173,607.65-403,325.10

Finding the Fourth Proportional to 782,405.10, 1,173,607.65 and 403,325.10

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Solution

The fourth proportional to 782,405.10, 1,173,607.65 and 403,325.10 is: 604,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,405.10 : 1,173,607.65 = 403,325.10 : x
  2. Step 2: Convert to fraction form
    782,405.10/1,173,607.65 = 403,325.10/x
  3. Step 3: Cross multiply
    782,405.10x = 1,173,607.65 × 403,325.10
  4. Step 4: Simplify right side
    782,405.10x = 473,345,422,797.02
  5. Step 5: Solve for x
    x = 473,345,422,797.02/782,405.10
  6. Step 6: Final answer
    x = 604,987.65

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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.