Home / 684,792.90-1,026,632.60-285,730.92

Finding the Fourth Proportional to 684,792.90, 1,026,632.60 and 285,730.92

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Solution

The fourth proportional to 684,792.90, 1,026,632.60 and 285,730.92 is: 428,364.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,792.90 : 1,026,632.60 = 285,730.92 : x
  2. Step 2: Convert to fraction form
    684,792.90/1,026,632.60 = 285,730.92/x
  3. Step 3: Cross multiply
    684,792.90x = 1,026,632.60 × 285,730.92
  4. Step 4: Simplify right side
    684,792.90x = 293,340,677,299.99
  5. Step 5: Solve for x
    x = 293,340,677,299.99/684,792.90
  6. Step 6: Final answer
    x = 428,364.08

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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.