Home / 847,977.86-1,271,809.96-386,246.95

Finding the Fourth Proportional to 847,977.86, 1,271,809.96 and 386,246.95

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Solution

The fourth proportional to 847,977.86, 1,271,809.96 and 386,246.95 is: 579,298.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,977.86 : 1,271,809.96 = 386,246.95 : x
  2. Step 2: Convert to fraction form
    847,977.86/1,271,809.96 = 386,246.95/x
  3. Step 3: Cross multiply
    847,977.86x = 1,271,809.96 × 386,246.95
  4. Step 4: Simplify right side
    847,977.86x = 491,232,713,884.48
  5. Step 5: Solve for x
    x = 491,232,713,884.48/847,977.86
  6. Step 6: Final answer
    x = 579,298.98

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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.