Home / 691,720.40-1,036,608.60-549,808.40

Finding the Fourth Proportional to 691,720.40, 1,036,608.60 and 549,808.40

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Solution

The fourth proportional to 691,720.40, 1,036,608.60 and 549,808.40 is: 823,940.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,720.40 : 1,036,608.60 = 549,808.40 : x
  2. Step 2: Convert to fraction form
    691,720.40/1,036,608.60 = 549,808.40/x
  3. Step 3: Cross multiply
    691,720.40x = 1,036,608.60 × 549,808.40
  4. Step 4: Simplify right side
    691,720.40x = 569,936,115,792.24
  5. Step 5: Solve for x
    x = 569,936,115,792.24/691,720.40
  6. Step 6: Final answer
    x = 823,940.01

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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.