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Finding the Fourth Proportional to 700,100.40, 1,050,265.80 and 300,932.40

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Solution

The fourth proportional to 700,100.40, 1,050,265.80 and 300,932.40 is: 451,448.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,100.40 : 1,050,265.80 = 300,932.40 : x
  2. Step 2: Convert to fraction form
    700,100.40/1,050,265.80 = 300,932.40/x
  3. Step 3: Cross multiply
    700,100.40x = 1,050,265.80 × 300,932.40
  4. Step 4: Simplify right side
    700,100.40x = 316,059,007,831.92
  5. Step 5: Solve for x
    x = 316,059,007,831.92/700,100.40
  6. Step 6: Final answer
    x = 451,448.12

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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.