Home / 718,683.20-1,078,802.40-403,755.20

Finding the Fourth Proportional to 718,683.20, 1,078,802.40 and 403,755.20

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Solution

The fourth proportional to 718,683.20, 1,078,802.40 and 403,755.20 is: 606,069.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,683.20 : 1,078,802.40 = 403,755.20 : x
  2. Step 2: Convert to fraction form
    718,683.20/1,078,802.40 = 403,755.20/x
  3. Step 3: Cross multiply
    718,683.20x = 1,078,802.40 × 403,755.20
  4. Step 4: Simplify right side
    718,683.20x = 435,572,078,772.48
  5. Step 5: Solve for x
    x = 435,572,078,772.48/718,683.20
  6. Step 6: Final answer
    x = 606,069.65

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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.