Home / 403,867.40-605,829.90-123,384.20

Finding the Fourth Proportional to 403,867.40, 605,829.90 and 123,384.20

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Solution

The fourth proportional to 403,867.40, 605,829.90 and 123,384.20 is: 185,085.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,867.40 : 605,829.90 = 123,384.20 : x
  2. Step 2: Convert to fraction form
    403,867.40/605,829.90 = 123,384.20/x
  3. Step 3: Cross multiply
    403,867.40x = 605,829.90 × 123,384.20
  4. Step 4: Simplify right side
    403,867.40x = 74,749,837,547.58
  5. Step 5: Solve for x
    x = 74,749,837,547.58/403,867.40
  6. Step 6: Final answer
    x = 185,085.10

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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.