Home / 768,030.42-1,059,880.20-445,929.06

Finding the Fourth Proportional to 768,030.42, 1,059,880.20 and 445,929.06

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Solution

The fourth proportional to 768,030.42, 1,059,880.20 and 445,929.06 is: 615,381.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,030.42 : 1,059,880.20 = 445,929.06 : x
  2. Step 2: Convert to fraction form
    768,030.42/1,059,880.20 = 445,929.06/x
  3. Step 3: Cross multiply
    768,030.42x = 1,059,880.20 × 445,929.06
  4. Step 4: Simplify right side
    768,030.42x = 472,631,381,298.61
  5. Step 5: Solve for x
    x = 472,631,381,298.61/768,030.42
  6. Step 6: Final answer
    x = 615,381.07

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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.