Home / 303,905.10-455,857.65-286,409.10

Finding the Fourth Proportional to 303,905.10, 455,857.65 and 286,409.10

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Solution

The fourth proportional to 303,905.10, 455,857.65 and 286,409.10 is: 429,613.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,905.10 : 455,857.65 = 286,409.10 : x
  2. Step 2: Convert to fraction form
    303,905.10/455,857.65 = 286,409.10/x
  3. Step 3: Cross multiply
    303,905.10x = 455,857.65 × 286,409.10
  4. Step 4: Simplify right side
    303,905.10x = 130,561,779,264.62
  5. Step 5: Solve for x
    x = 130,561,779,264.62/303,905.10
  6. Step 6: Final answer
    x = 429,613.65

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Similar ratio
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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.