Home / 820,543.84-1,231,365.56-288,066.45

Finding the Fourth Proportional to 820,543.84, 1,231,365.56 and 288,066.45

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Solution

The fourth proportional to 820,543.84, 1,231,365.56 and 288,066.45 is: 432,292.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,543.84 : 1,231,365.56 = 288,066.45 : x
  2. Step 2: Convert to fraction form
    820,543.84/1,231,365.56 = 288,066.45/x
  3. Step 3: Cross multiply
    820,543.84x = 1,231,365.56 × 288,066.45
  4. Step 4: Simplify right side
    820,543.84x = 354,715,105,521.46
  5. Step 5: Solve for x
    x = 354,715,105,521.46/820,543.84
  6. Step 6: Final answer
    x = 432,292.69

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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.