Home / 742,959.92-1,114,628.52-343,888.56

Finding the Fourth Proportional to 742,959.92, 1,114,628.52 and 343,888.56

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Solution

The fourth proportional to 742,959.92, 1,114,628.52 and 343,888.56 is: 515,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,959.92 : 1,114,628.52 = 343,888.56 : x
  2. Step 2: Convert to fraction form
    742,959.92/1,114,628.52 = 343,888.56/x
  3. Step 3: Cross multiply
    742,959.92x = 1,114,628.52 × 343,888.56
  4. Step 4: Simplify right side
    742,959.92x = 383,307,996,677.73
  5. Step 5: Solve for x
    x = 383,307,996,677.73/742,959.92
  6. Step 6: Final answer
    x = 515,920.15

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1.5x scale

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.