Home / 928,908.04-1,281,790.59-520,925.92

Finding the Fourth Proportional to 928,908.04, 1,281,790.59 and 520,925.92

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Solution

The fourth proportional to 928,908.04, 1,281,790.59 and 520,925.92 is: 718,820.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,908.04 : 1,281,790.59 = 520,925.92 : x
  2. Step 2: Convert to fraction form
    928,908.04/1,281,790.59 = 520,925.92/x
  3. Step 3: Cross multiply
    928,908.04x = 1,281,790.59 × 520,925.92
  4. Step 4: Simplify right side
    928,908.04x = 667,717,939,138.62
  5. Step 5: Solve for x
    x = 667,717,939,138.62/928,908.04
  6. Step 6: Final answer
    x = 718,820.28

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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.