Home / 745,804.40-1,118,868.60-272,489

Finding the Fourth Proportional to 745,804.40, 1,118,868.60 and 272,489

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Solution

The fourth proportional to 745,804.40, 1,118,868.60 and 272,489 is: 408,792.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,804.40 : 1,118,868.60 = 272,489 : x
  2. Step 2: Convert to fraction form
    745,804.40/1,118,868.60 = 272,489/x
  3. Step 3: Cross multiply
    745,804.40x = 1,118,868.60 × 272,489
  4. Step 4: Simplify right side
    745,804.40x = 304,879,385,945.40
  5. Step 5: Solve for x
    x = 304,879,385,945.40/745,804.40
  6. Step 6: Final answer
    x = 408,792.69

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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.