Home / 890,242.92-1,228,495.14-487,826.28

Finding the Fourth Proportional to 890,242.92, 1,228,495.14 and 487,826.28

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Solution

The fourth proportional to 890,242.92, 1,228,495.14 and 487,826.28 is: 673,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,242.92 : 1,228,495.14 = 487,826.28 : x
  2. Step 2: Convert to fraction form
    890,242.92/1,228,495.14 = 487,826.28/x
  3. Step 3: Cross multiply
    890,242.92x = 1,228,495.14 × 487,826.28
  4. Step 4: Simplify right side
    890,242.92x = 599,292,214,144.28
  5. Step 5: Solve for x
    x = 599,292,214,144.28/890,242.92
  6. Step 6: Final answer
    x = 673,178.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.