Home / 648,015.90-972,023.85-459,059.10

Finding the Fourth Proportional to 648,015.90, 972,023.85 and 459,059.10

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Solution

The fourth proportional to 648,015.90, 972,023.85 and 459,059.10 is: 688,588.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,015.90 : 972,023.85 = 459,059.10 : x
  2. Step 2: Convert to fraction form
    648,015.90/972,023.85 = 459,059.10/x
  3. Step 3: Cross multiply
    648,015.90x = 972,023.85 × 459,059.10
  4. Step 4: Simplify right side
    648,015.90x = 446,216,393,759.54
  5. Step 5: Solve for x
    x = 446,216,393,759.54/648,015.90
  6. Step 6: Final answer
    x = 688,588.65

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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.