Home / 628,304.85-941,982.62-312,984.81

Finding the Fourth Proportional to 628,304.85, 941,982.62 and 312,984.81

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Solution

The fourth proportional to 628,304.85, 941,982.62 and 312,984.81 is: 469,240.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,304.85 : 941,982.62 = 312,984.81 : x
  2. Step 2: Convert to fraction form
    628,304.85/941,982.62 = 312,984.81/x
  3. Step 3: Cross multiply
    628,304.85x = 941,982.62 × 312,984.81
  4. Step 4: Simplify right side
    628,304.85x = 294,826,249,779.08
  5. Step 5: Solve for x
    x = 294,826,249,779.08/628,304.85
  6. Step 6: Final answer
    x = 469,240.77

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1.5x scale

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.