Home / 768,030.92-1,059,880.89-445,929.56

Finding the Fourth Proportional to 768,030.92, 1,059,880.89 and 445,929.56

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Solution

The fourth proportional to 768,030.92, 1,059,880.89 and 445,929.56 is: 615,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,030.92 : 1,059,880.89 = 445,929.56 : x
  2. Step 2: Convert to fraction form
    768,030.92/1,059,880.89 = 445,929.56/x
  3. Step 3: Cross multiply
    768,030.92x = 1,059,880.89 × 445,929.56
  4. Step 4: Simplify right side
    768,030.92x = 472,632,218,930.11
  5. Step 5: Solve for x
    x = 472,632,218,930.11/768,030.92
  6. Step 6: Final answer
    x = 615,381.76

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1.5x scale

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.