Home / 780,213.96-1,169,988.62-306,567.06

Finding the Fourth Proportional to 780,213.96, 1,169,988.62 and 306,567.06

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Solution

The fourth proportional to 780,213.96, 1,169,988.62 and 306,567.06 is: 459,720.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,213.96 : 1,169,988.62 = 306,567.06 : x
  2. Step 2: Convert to fraction form
    780,213.96/1,169,988.62 = 306,567.06/x
  3. Step 3: Cross multiply
    780,213.96x = 1,169,988.62 × 306,567.06
  4. Step 4: Simplify right side
    780,213.96x = 358,679,971,466.86
  5. Step 5: Solve for x
    x = 358,679,971,466.86/780,213.96
  6. Step 6: Final answer
    x = 459,720.01

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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.