Home / 425,779.14-637,945.72-256,944.69

Finding the Fourth Proportional to 425,779.14, 637,945.72 and 256,944.69

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Solution

The fourth proportional to 425,779.14, 637,945.72 and 256,944.69 is: 384,980.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,779.14 : 637,945.72 = 256,944.69 : x
  2. Step 2: Convert to fraction form
    425,779.14/637,945.72 = 256,944.69/x
  3. Step 3: Cross multiply
    425,779.14x = 637,945.72 × 256,944.69
  4. Step 4: Simplify right side
    425,779.14x = 163,916,765,262.23
  5. Step 5: Solve for x
    x = 163,916,765,262.23/425,779.14
  6. Step 6: Final answer
    x = 384,980.73

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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.