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Finding the Fourth Proportional to 553,804.76, 830,707.04 and 133,080.64

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Solution

The fourth proportional to 553,804.76, 830,707.04 and 133,080.64 is: 199,620.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,804.76 : 830,707.04 = 133,080.64 : x
  2. Step 2: Convert to fraction form
    553,804.76/830,707.04 = 133,080.64/x
  3. Step 3: Cross multiply
    553,804.76x = 830,707.04 × 133,080.64
  4. Step 4: Simplify right side
    553,804.76x = 110,551,024,535.71
  5. Step 5: Solve for x
    x = 110,551,024,535.71/553,804.76
  6. Step 6: Final answer
    x = 199,620.94

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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.