Home / 549,470.28-758,096.82-307,720.20

Finding the Fourth Proportional to 549,470.28, 758,096.82 and 307,720.20

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Solution

The fourth proportional to 549,470.28, 758,096.82 and 307,720.20 is: 424,557.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,470.28 : 758,096.82 = 307,720.20 : x
  2. Step 2: Convert to fraction form
    549,470.28/758,096.82 = 307,720.20/x
  3. Step 3: Cross multiply
    549,470.28x = 758,096.82 × 307,720.20
  4. Step 4: Simplify right side
    549,470.28x = 233,281,705,069.76
  5. Step 5: Solve for x
    x = 233,281,705,069.76/549,470.28
  6. Step 6: Final answer
    x = 424,557.46

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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.