Home / 400,729.02-553,006.98-219,452.82

Finding the Fourth Proportional to 400,729.02, 553,006.98 and 219,452.82

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Solution

The fourth proportional to 400,729.02, 553,006.98 and 219,452.82 is: 302,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,729.02 : 553,006.98 = 219,452.82 : x
  2. Step 2: Convert to fraction form
    400,729.02/553,006.98 = 219,452.82/x
  3. Step 3: Cross multiply
    400,729.02x = 553,006.98 × 219,452.82
  4. Step 4: Simplify right side
    400,729.02x = 121,358,941,240.68
  5. Step 5: Solve for x
    x = 121,358,941,240.68/400,729.02
  6. Step 6: Final answer
    x = 302,845.40

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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.