Home / 690,663.11-1,036,701.62-570,336.68

Finding the Fourth Proportional to 690,663.11, 1,036,701.62 and 570,336.68

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Solution

The fourth proportional to 690,663.11, 1,036,701.62 and 570,336.68 is: 856,088.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,663.11 : 1,036,701.62 = 570,336.68 : x
  2. Step 2: Convert to fraction form
    690,663.11/1,036,701.62 = 570,336.68/x
  3. Step 3: Cross multiply
    690,663.11x = 1,036,701.62 × 570,336.68
  4. Step 4: Simplify right side
    690,663.11x = 591,268,959,689.42
  5. Step 5: Solve for x
    x = 591,268,959,689.42/690,663.11
  6. Step 6: Final answer
    x = 856,088.81

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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.