Home / 400,823.73-553,117.01-219,536.46

Finding the Fourth Proportional to 400,823.73, 553,117.01 and 219,536.46

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Solution

The fourth proportional to 400,823.73, 553,117.01 and 219,536.46 is: 302,949.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,823.73 : 553,117.01 = 219,536.46 : x
  2. Step 2: Convert to fraction form
    400,823.73/553,117.01 = 219,536.46/x
  3. Step 3: Cross multiply
    400,823.73x = 553,117.01 × 219,536.46
  4. Step 4: Simplify right side
    400,823.73x = 121,429,349,243.50
  5. Step 5: Solve for x
    x = 121,429,349,243.50/400,823.73
  6. Step 6: Final answer
    x = 302,949.50

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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.