Home / 690,742.47-1,036,820.43-570,416.16

Finding the Fourth Proportional to 690,742.47, 1,036,820.43 and 570,416.16

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Solution

The fourth proportional to 690,742.47, 1,036,820.43 and 570,416.16 is: 856,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,742.47 : 1,036,820.43 = 570,416.16 : x
  2. Step 2: Convert to fraction form
    690,742.47/1,036,820.43 = 570,416.16/x
  3. Step 3: Cross multiply
    690,742.47x = 1,036,820.43 × 570,416.16
  4. Step 4: Simplify right side
    690,742.47x = 591,419,128,290.15
  5. Step 5: Solve for x
    x = 591,419,128,290.15/690,742.47
  6. Step 6: Final answer
    x = 856,207.85

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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.