Home / 745,830.40-1,119,134.40-325,148.80

Finding the Fourth Proportional to 745,830.40, 1,119,134.40 and 325,148.80

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Solution

The fourth proportional to 745,830.40, 1,119,134.40 and 325,148.80 is: 487,892.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,830.40 : 1,119,134.40 = 325,148.80 : x
  2. Step 2: Convert to fraction form
    745,830.40/1,119,134.40 = 325,148.80/x
  3. Step 3: Cross multiply
    745,830.40x = 1,119,134.40 × 325,148.80
  4. Step 4: Simplify right side
    745,830.40x = 363,885,207,198.72
  5. Step 5: Solve for x
    x = 363,885,207,198.72/745,830.40
  6. Step 6: Final answer
    x = 487,892.70

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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.