Home / 803,728.38-1,205,389.53-298,011.42

Finding the Fourth Proportional to 803,728.38, 1,205,389.53 and 298,011.42

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Solution

The fourth proportional to 803,728.38, 1,205,389.53 and 298,011.42 is: 446,941.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,728.38 : 1,205,389.53 = 298,011.42 : x
  2. Step 2: Convert to fraction form
    803,728.38/1,205,389.53 = 298,011.42/x
  3. Step 3: Cross multiply
    803,728.38x = 1,205,389.53 × 298,011.42
  4. Step 4: Simplify right side
    803,728.38x = 359,219,845,488.43
  5. Step 5: Solve for x
    x = 359,219,845,488.43/803,728.38
  6. Step 6: Final answer
    x = 446,941.85

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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.