Home / 549,405.23-758,143.12-307,632.38

Finding the Fourth Proportional to 549,405.23, 758,143.12 and 307,632.38

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Solution

The fourth proportional to 549,405.23, 758,143.12 and 307,632.38 is: 424,512.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,405.23 : 758,143.12 = 307,632.38 : x
  2. Step 2: Convert to fraction form
    549,405.23/758,143.12 = 307,632.38/x
  3. Step 3: Cross multiply
    549,405.23x = 758,143.12 × 307,632.38
  4. Step 4: Simplify right side
    549,405.23x = 233,229,372,386.23
  5. Step 5: Solve for x
    x = 233,229,372,386.23/549,405.23
  6. Step 6: Final answer
    x = 424,512.47

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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.