Home / 874,331.80-1,312,080.90-400,773.40

Finding the Fourth Proportional to 874,331.80, 1,312,080.90 and 400,773.40

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Solution

The fourth proportional to 874,331.80, 1,312,080.90 and 400,773.40 is: 601,427.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,331.80 : 1,312,080.90 = 400,773.40 : x
  2. Step 2: Convert to fraction form
    874,331.80/1,312,080.90 = 400,773.40/x
  3. Step 3: Cross multiply
    874,331.80x = 1,312,080.90 × 400,773.40
  4. Step 4: Simplify right side
    874,331.80x = 525,847,123,368.06
  5. Step 5: Solve for x
    x = 525,847,123,368.06/874,331.80
  6. Step 6: Final answer
    x = 601,427.43

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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.