Home / 679,966.40-1,019,949.60-306,718.40

Finding the Fourth Proportional to 679,966.40, 1,019,949.60 and 306,718.40

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Solution

The fourth proportional to 679,966.40, 1,019,949.60 and 306,718.40 is: 460,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,966.40 : 1,019,949.60 = 306,718.40 : x
  2. Step 2: Convert to fraction form
    679,966.40/1,019,949.60 = 306,718.40/x
  3. Step 3: Cross multiply
    679,966.40x = 1,019,949.60 × 306,718.40
  4. Step 4: Simplify right side
    679,966.40x = 312,837,309,392.64
  5. Step 5: Solve for x
    x = 312,837,309,392.64/679,966.40
  6. Step 6: Final answer
    x = 460,077.60

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Similar ratio
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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.