Home / 705,938.40-1,059,432.48-285,217.92

Finding the Fourth Proportional to 705,938.40, 1,059,432.48 and 285,217.92

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Solution

The fourth proportional to 705,938.40, 1,059,432.48 and 285,217.92 is: 428,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,938.40 : 1,059,432.48 = 285,217.92 : x
  2. Step 2: Convert to fraction form
    705,938.40/1,059,432.48 = 285,217.92/x
  3. Step 3: Cross multiply
    705,938.40x = 1,059,432.48 × 285,217.92
  4. Step 4: Simplify right side
    705,938.40x = 302,169,128,326.04
  5. Step 5: Solve for x
    x = 302,169,128,326.04/705,938.40
  6. Step 6: Final answer
    x = 428,038.95

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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.