Home / 885,721.80-1,328,582.70-324,683.40

Finding the Fourth Proportional to 885,721.80, 1,328,582.70 and 324,683.40

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Solution

The fourth proportional to 885,721.80, 1,328,582.70 and 324,683.40 is: 487,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,721.80 : 1,328,582.70 = 324,683.40 : x
  2. Step 2: Convert to fraction form
    885,721.80/1,328,582.70 = 324,683.40/x
  3. Step 3: Cross multiply
    885,721.80x = 1,328,582.70 × 324,683.40
  4. Step 4: Simplify right side
    885,721.80x = 431,368,748,217.18
  5. Step 5: Solve for x
    x = 431,368,748,217.18/885,721.80
  6. Step 6: Final answer
    x = 487,025.10

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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.