Home / 420,675.36-580,527.60-229,688.16

Finding the Fourth Proportional to 420,675.36, 580,527.60 and 229,688.16

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Solution

The fourth proportional to 420,675.36, 580,527.60 and 229,688.16 is: 316,967.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,675.36 : 580,527.60 = 229,688.16 : x
  2. Step 2: Convert to fraction form
    420,675.36/580,527.60 = 229,688.16/x
  3. Step 3: Cross multiply
    420,675.36x = 580,527.60 × 229,688.16
  4. Step 4: Simplify right side
    420,675.36x = 133,340,316,273.22
  5. Step 5: Solve for x
    x = 133,340,316,273.22/420,675.36
  6. Step 6: Final answer
    x = 316,967.26

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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.