Home / 873,344.40-1,309,224.60-312,248.40

Finding the Fourth Proportional to 873,344.40, 1,309,224.60 and 312,248.40

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Solution

The fourth proportional to 873,344.40, 1,309,224.60 and 312,248.40 is: 468,089.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,344.40 : 1,309,224.60 = 312,248.40 : x
  2. Step 2: Convert to fraction form
    873,344.40/1,309,224.60 = 312,248.40/x
  3. Step 3: Cross multiply
    873,344.40x = 1,309,224.60 × 312,248.40
  4. Step 4: Simplify right side
    873,344.40x = 408,803,286,590.64
  5. Step 5: Solve for x
    x = 408,803,286,590.64/873,344.40
  6. Step 6: Final answer
    x = 468,089.43

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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.