Home / 668,720.57-1,001,819.75-518,225.22

Finding the Fourth Proportional to 668,720.57, 1,001,819.75 and 518,225.22

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Solution

The fourth proportional to 668,720.57, 1,001,819.75 and 518,225.22 is: 776,360.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,720.57 : 1,001,819.75 = 518,225.22 : x
  2. Step 2: Convert to fraction form
    668,720.57/1,001,819.75 = 518,225.22/x
  3. Step 3: Cross multiply
    668,720.57x = 1,001,819.75 × 518,225.22
  4. Step 4: Simplify right side
    668,720.57x = 519,168,257,752.97
  5. Step 5: Solve for x
    x = 519,168,257,752.97/668,720.57
  6. Step 6: Final answer
    x = 776,360.54

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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.