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Finding the Fourth Proportional to 553,818.80, 764,412.14 and 360,707.72

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Solution

The fourth proportional to 553,818.80, 764,412.14 and 360,707.72 is: 497,869.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,818.80 : 764,412.14 = 360,707.72 : x
  2. Step 2: Convert to fraction form
    553,818.80/764,412.14 = 360,707.72/x
  3. Step 3: Cross multiply
    553,818.80x = 764,412.14 × 360,707.72
  4. Step 4: Simplify right side
    553,818.80x = 275,729,355,210.45
  5. Step 5: Solve for x
    x = 275,729,355,210.45/553,818.80
  6. Step 6: Final answer
    x = 497,869.26

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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.