Home / 979,389.42-1,351,689.29-549,693.06

Finding the Fourth Proportional to 979,389.42, 1,351,689.29 and 549,693.06

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Solution

The fourth proportional to 979,389.42, 1,351,689.29 and 549,693.06 is: 758,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,389.42 : 1,351,689.29 = 549,693.06 : x
  2. Step 2: Convert to fraction form
    979,389.42/1,351,689.29 = 549,693.06/x
  3. Step 3: Cross multiply
    979,389.42x = 1,351,689.29 × 549,693.06
  4. Step 4: Simplify right side
    979,389.42x = 743,014,221,989.33
  5. Step 5: Solve for x
    x = 743,014,221,989.33/979,389.42
  6. Step 6: Final answer
    x = 758,650.45

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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.