Home / 767,323.20-1,149,429.60-434,510.40

Finding the Fourth Proportional to 767,323.20, 1,149,429.60 and 434,510.40

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Solution

The fourth proportional to 767,323.20, 1,149,429.60 and 434,510.40 is: 650,884.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,323.20 : 1,149,429.60 = 434,510.40 : x
  2. Step 2: Convert to fraction form
    767,323.20/1,149,429.60 = 434,510.40/x
  3. Step 3: Cross multiply
    767,323.20x = 1,149,429.60 × 434,510.40
  4. Step 4: Simplify right side
    767,323.20x = 499,439,115,267.84
  5. Step 5: Solve for x
    x = 499,439,115,267.84/767,323.20
  6. Step 6: Final answer
    x = 650,884.94

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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.