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Finding the Fourth Proportional to 553,818.37, 764,411.53 and 360,707.28

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Solution

The fourth proportional to 553,818.37, 764,411.53 and 360,707.28 is: 497,868.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,818.37 : 764,411.53 = 360,707.28 : x
  2. Step 2: Convert to fraction form
    553,818.37/764,411.53 = 360,707.28/x
  3. Step 3: Cross multiply
    553,818.37x = 764,411.53 × 360,707.28
  4. Step 4: Simplify right side
    553,818.37x = 275,728,803,228.56
  5. Step 5: Solve for x
    x = 275,728,803,228.56/553,818.37
  6. Step 6: Final answer
    x = 497,868.65

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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.