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Finding the Fourth Proportional to 702,927.53, 970,038.24 and 380,637.61

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Solution

The fourth proportional to 702,927.53, 970,038.24 and 380,637.61 is: 525,278.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,927.53 : 970,038.24 = 380,637.61 : x
  2. Step 2: Convert to fraction form
    702,927.53/970,038.24 = 380,637.61/x
  3. Step 3: Cross multiply
    702,927.53x = 970,038.24 × 380,637.61
  4. Step 4: Simplify right side
    702,927.53x = 369,233,030,528.83
  5. Step 5: Solve for x
    x = 369,233,030,528.83/702,927.53
  6. Step 6: Final answer
    x = 525,278.95

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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.