Home / 656,834.22-906,430.68-355,028.22

Finding the Fourth Proportional to 656,834.22, 906,430.68 and 355,028.22

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Solution

The fourth proportional to 656,834.22, 906,430.68 and 355,028.22 is: 489,938.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,834.22 : 906,430.68 = 355,028.22 : x
  2. Step 2: Convert to fraction form
    656,834.22/906,430.68 = 355,028.22/x
  3. Step 3: Cross multiply
    656,834.22x = 906,430.68 × 355,028.22
  4. Step 4: Simplify right side
    656,834.22x = 321,808,470,873.79
  5. Step 5: Solve for x
    x = 321,808,470,873.79/656,834.22
  6. Step 6: Final answer
    x = 489,938.65

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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.