Home / 853,899.12-1,280,802.48-433,164.06

Finding the Fourth Proportional to 853,899.12, 1,280,802.48 and 433,164.06

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Solution

The fourth proportional to 853,899.12, 1,280,802.48 and 433,164.06 is: 649,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,899.12 : 1,280,802.48 = 433,164.06 : x
  2. Step 2: Convert to fraction form
    853,899.12/1,280,802.48 = 433,164.06/x
  3. Step 3: Cross multiply
    853,899.12x = 1,280,802.48 × 433,164.06
  4. Step 4: Simplify right side
    853,899.12x = 554,797,602,294.87
  5. Step 5: Solve for x
    x = 554,797,602,294.87/853,899.12
  6. Step 6: Final answer
    x = 649,722.65

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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.