Home / 492,585.60-738,570.24-208,128.96

Finding the Fourth Proportional to 492,585.60, 738,570.24 and 208,128.96

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Solution

The fourth proportional to 492,585.60, 738,570.24 and 208,128.96 is: 312,063.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,585.60 : 738,570.24 = 208,128.96 : x
  2. Step 2: Convert to fraction form
    492,585.60/738,570.24 = 208,128.96/x
  3. Step 3: Cross multiply
    492,585.60x = 738,570.24 × 208,128.96
  4. Step 4: Simplify right side
    492,585.60x = 153,717,855,938.15
  5. Step 5: Solve for x
    x = 153,717,855,938.15/492,585.60
  6. Step 6: Final answer
    x = 312,063.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.