Home / 690,051.51-1,034,727.35-315,753.75

Finding the Fourth Proportional to 690,051.51, 1,034,727.35 and 315,753.75

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Solution

The fourth proportional to 690,051.51, 1,034,727.35 and 315,753.75 is: 473,470.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,051.51 : 1,034,727.35 = 315,753.75 : x
  2. Step 2: Convert to fraction form
    690,051.51/1,034,727.35 = 315,753.75/x
  3. Step 3: Cross multiply
    690,051.51x = 1,034,727.35 × 315,753.75
  4. Step 4: Simplify right side
    690,051.51x = 326,719,039,411.29
  5. Step 5: Solve for x
    x = 326,719,039,411.29/690,051.51
  6. Step 6: Final answer
    x = 473,470.51

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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.