Home / 458,784.20-686,864.10-458,784.20

Finding the Fourth Proportional to 458,784.20, 686,864.10 and 458,784.20

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Solution

The fourth proportional to 458,784.20, 686,864.10 and 458,784.20 is: 686,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,784.20 : 686,864.10 = 458,784.20 : x
  2. Step 2: Convert to fraction form
    458,784.20/686,864.10 = 458,784.20/x
  3. Step 3: Cross multiply
    458,784.20x = 686,864.10 × 458,784.20
  4. Step 4: Simplify right side
    458,784.20x = 315,122,396,627.22
  5. Step 5: Solve for x
    x = 315,122,396,627.22/458,784.20
  6. Step 6: Final answer
    x = 686,864.10

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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.