Home / 1,235,890.20-1,854,928.80-729,818.40

Finding the Fourth Proportional to 1,235,890.20, 1,854,928.80 and 729,818.40

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Solution

The fourth proportional to 1,235,890.20, 1,854,928.80 and 729,818.40 is: 1,095,373.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,890.20 : 1,854,928.80 = 729,818.40 : x
  2. Step 2: Convert to fraction form
    1,235,890.20/1,854,928.80 = 729,818.40/x
  3. Step 3: Cross multiply
    1,235,890.20x = 1,854,928.80 × 729,818.40
  4. Step 4: Simplify right side
    1,235,890.20x = 1,353,761,168,929.92
  5. Step 5: Solve for x
    x = 1,353,761,168,929.92/1,235,890.20
  6. Step 6: Final answer
    x = 1,095,373.33

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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.