Home / 549,138.90-757,812.06-307,421.94

Finding the Fourth Proportional to 549,138.90, 757,812.06 and 307,421.94

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Solution

The fourth proportional to 549,138.90, 757,812.06 and 307,421.94 is: 424,242.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,138.90 : 757,812.06 = 307,421.94 : x
  2. Step 2: Convert to fraction form
    549,138.90/757,812.06 = 307,421.94/x
  3. Step 3: Cross multiply
    549,138.90x = 757,812.06 × 307,421.94
  4. Step 4: Simplify right side
    549,138.90x = 232,968,053,640.60
  5. Step 5: Solve for x
    x = 232,968,053,640.60/549,138.90
  6. Step 6: Final answer
    x = 424,242.49

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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.