Home / 822,884.81-1,135,123.97-478,681.97

Finding the Fourth Proportional to 822,884.81, 1,135,123.97 and 478,681.97

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Solution

The fourth proportional to 822,884.81, 1,135,123.97 and 478,681.97 is: 660,315.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,884.81 : 1,135,123.97 = 478,681.97 : x
  2. Step 2: Convert to fraction form
    822,884.81/1,135,123.97 = 478,681.97/x
  3. Step 3: Cross multiply
    822,884.81x = 1,135,123.97 × 478,681.97
  4. Step 4: Simplify right side
    822,884.81x = 543,363,370,084.79
  5. Step 5: Solve for x
    x = 543,363,370,084.79/822,884.81
  6. Step 6: Final answer
    x = 660,315.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.