Home / 682,364.90-1,021,992.15-402,428.90

Finding the Fourth Proportional to 682,364.90, 1,021,992.15 and 402,428.90

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Solution

The fourth proportional to 682,364.90, 1,021,992.15 and 402,428.90 is: 602,726.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,364.90 : 1,021,992.15 = 402,428.90 : x
  2. Step 2: Convert to fraction form
    682,364.90/1,021,992.15 = 402,428.90/x
  3. Step 3: Cross multiply
    682,364.90x = 1,021,992.15 × 402,428.90
  4. Step 4: Simplify right side
    682,364.90x = 411,279,176,733.14
  5. Step 5: Solve for x
    x = 411,279,176,733.14/682,364.90
  6. Step 6: Final answer
    x = 602,726.16

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1.5x scale

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.