Home / 679,958.90-1,019,938.35-306,710.90

Finding the Fourth Proportional to 679,958.90, 1,019,938.35 and 306,710.90

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Solution

The fourth proportional to 679,958.90, 1,019,938.35 and 306,710.90 is: 460,066.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,958.90 : 1,019,938.35 = 306,710.90 : x
  2. Step 2: Convert to fraction form
    679,958.90/1,019,938.35 = 306,710.90/x
  3. Step 3: Cross multiply
    679,958.90x = 1,019,938.35 × 306,710.90
  4. Step 4: Simplify right side
    679,958.90x = 312,826,209,273.02
  5. Step 5: Solve for x
    x = 312,826,209,273.02/679,958.90
  6. Step 6: Final answer
    x = 460,066.35

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Double scale
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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.