Home / 303,769.10-455,653.65-286,273.10

Finding the Fourth Proportional to 303,769.10, 455,653.65 and 286,273.10

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Solution

The fourth proportional to 303,769.10, 455,653.65 and 286,273.10 is: 429,409.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,769.10 : 455,653.65 = 286,273.10 : x
  2. Step 2: Convert to fraction form
    303,769.10/455,653.65 = 286,273.10/x
  3. Step 3: Cross multiply
    303,769.10x = 455,653.65 × 286,273.10
  4. Step 4: Simplify right side
    303,769.10x = 130,441,382,911.82
  5. Step 5: Solve for x
    x = 130,441,382,911.82/303,769.10
  6. Step 6: Final answer
    x = 429,409.65

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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.