Home / 705,935.52-1,059,034.56-285,506.40

Finding the Fourth Proportional to 705,935.52, 1,059,034.56 and 285,506.40

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Solution

The fourth proportional to 705,935.52, 1,059,034.56 and 285,506.40 is: 428,312.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,935.52 : 1,059,034.56 = 285,506.40 : x
  2. Step 2: Convert to fraction form
    705,935.52/1,059,034.56 = 285,506.40/x
  3. Step 3: Cross multiply
    705,935.52x = 1,059,034.56 × 285,506.40
  4. Step 4: Simplify right side
    705,935.52x = 302,361,144,701.18
  5. Step 5: Solve for x
    x = 302,361,144,701.18/705,935.52
  6. Step 6: Final answer
    x = 428,312.69

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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.