Home / 693,122.04-1,039,940.64-423,802.80

Finding the Fourth Proportional to 693,122.04, 1,039,940.64 and 423,802.80

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Solution

The fourth proportional to 693,122.04, 1,039,940.64 and 423,802.80 is: 635,861.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,122.04 : 1,039,940.64 = 423,802.80 : x
  2. Step 2: Convert to fraction form
    693,122.04/1,039,940.64 = 423,802.80/x
  3. Step 3: Cross multiply
    693,122.04x = 1,039,940.64 × 423,802.80
  4. Step 4: Simplify right side
    693,122.04x = 440,729,755,065.79
  5. Step 5: Solve for x
    x = 440,729,755,065.79/693,122.04
  6. Step 6: Final answer
    x = 635,861.69

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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.