Home / 979,389.54-1,351,689.46-549,693.18

Finding the Fourth Proportional to 979,389.54, 1,351,689.46 and 549,693.18

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Solution

The fourth proportional to 979,389.54, 1,351,689.46 and 549,693.18 is: 758,650.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,389.54 : 1,351,689.46 = 549,693.18 : x
  2. Step 2: Convert to fraction form
    979,389.54/1,351,689.46 = 549,693.18/x
  3. Step 3: Cross multiply
    979,389.54x = 1,351,689.46 × 549,693.18
  4. Step 4: Simplify right side
    979,389.54x = 743,014,476,265.65
  5. Step 5: Solve for x
    x = 743,014,476,265.65/979,389.54
  6. Step 6: Final answer
    x = 758,650.61

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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.