Home / 853,990.56-1,281,788.40-433,568.16

Finding the Fourth Proportional to 853,990.56, 1,281,788.40 and 433,568.16

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Solution

The fourth proportional to 853,990.56, 1,281,788.40 and 433,568.16 is: 650,759.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,990.56 : 1,281,788.40 = 433,568.16 : x
  2. Step 2: Convert to fraction form
    853,990.56/1,281,788.40 = 433,568.16/x
  3. Step 3: Cross multiply
    853,990.56x = 1,281,788.40 × 433,568.16
  4. Step 4: Simplify right side
    853,990.56x = 555,742,638,097.34
  5. Step 5: Solve for x
    x = 555,742,638,097.34/853,990.56
  6. Step 6: Final answer
    x = 650,759.70

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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.