Home / 549,404.23-758,141.74-307,631.38

Finding the Fourth Proportional to 549,404.23, 758,141.74 and 307,631.38

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Solution

The fourth proportional to 549,404.23, 758,141.74 and 307,631.38 is: 424,511.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,404.23 : 758,141.74 = 307,631.38 : x
  2. Step 2: Convert to fraction form
    549,404.23/758,141.74 = 307,631.38/x
  3. Step 3: Cross multiply
    549,404.23x = 758,141.74 × 307,631.38
  4. Step 4: Simplify right side
    549,404.23x = 233,228,189,711.80
  5. Step 5: Solve for x
    x = 233,228,189,711.80/549,404.23
  6. Step 6: Final answer
    x = 424,511.09

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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.