Home / 905,583.12-1,249,734.67-497,699.42

Finding the Fourth Proportional to 905,583.12, 1,249,734.67 and 497,699.42

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Solution

The fourth proportional to 905,583.12, 1,249,734.67 and 497,699.42 is: 686,841.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,583.12 : 1,249,734.67 = 497,699.42 : x
  2. Step 2: Convert to fraction form
    905,583.12/1,249,734.67 = 497,699.42/x
  3. Step 3: Cross multiply
    905,583.12x = 1,249,734.67 × 497,699.42
  4. Step 4: Simplify right side
    905,583.12x = 621,992,222,292.98
  5. Step 5: Solve for x
    x = 621,992,222,292.98/905,583.12
  6. Step 6: Final answer
    x = 686,841.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.