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Finding the Fourth Proportional to 702,916.04, 970,028.80 and 380,626.14

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Solution

The fourth proportional to 702,916.04, 970,028.80 and 380,626.14 is: 525,266.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,916.04 : 970,028.80 = 380,626.14 : x
  2. Step 2: Convert to fraction form
    702,916.04/970,028.80 = 380,626.14/x
  3. Step 3: Cross multiply
    702,916.04x = 970,028.80 × 380,626.14
  4. Step 4: Simplify right side
    702,916.04x = 369,218,317,832.83
  5. Step 5: Solve for x
    x = 369,218,317,832.83/702,916.04
  6. Step 6: Final answer
    x = 525,266.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.