Home / 691,720.90-1,036,609.35-549,808.90

Finding the Fourth Proportional to 691,720.90, 1,036,609.35 and 549,808.90

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Solution

The fourth proportional to 691,720.90, 1,036,609.35 and 549,808.90 is: 823,940.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,720.90 : 1,036,609.35 = 549,808.90 : x
  2. Step 2: Convert to fraction form
    691,720.90/1,036,609.35 = 549,808.90/x
  3. Step 3: Cross multiply
    691,720.90x = 1,036,609.35 × 549,808.90
  4. Step 4: Simplify right side
    691,720.90x = 569,937,046,453.22
  5. Step 5: Solve for x
    x = 569,937,046,453.22/691,720.90
  6. Step 6: Final answer
    x = 823,940.76

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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.