Home / 1,803,909.51-2,705,990.52-724,421.90

Finding the Fourth Proportional to 1,803,909.51, 2,705,990.52 and 724,421.90

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Solution

The fourth proportional to 1,803,909.51, 2,705,990.52 and 724,421.90 is: 1,086,683.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803,909.51 : 2,705,990.52 = 724,421.90 : x
  2. Step 2: Convert to fraction form
    1,803,909.51/2,705,990.52 = 724,421.90/x
  3. Step 3: Cross multiply
    1,803,909.51x = 2,705,990.52 × 724,421.90
  4. Step 4: Simplify right side
    1,803,909.51x = 1,960,278,793,880.39
  5. Step 5: Solve for x
    x = 1,960,278,793,880.39/1,803,909.51
  6. Step 6: Final answer
    x = 1,086,683.55

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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.