Home / 879,287.80-1,318,931.70-816,302.20

Finding the Fourth Proportional to 879,287.80, 1,318,931.70 and 816,302.20

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Solution

The fourth proportional to 879,287.80, 1,318,931.70 and 816,302.20 is: 1,224,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,287.80 : 1,318,931.70 = 816,302.20 : x
  2. Step 2: Convert to fraction form
    879,287.80/1,318,931.70 = 816,302.20/x
  3. Step 3: Cross multiply
    879,287.80x = 1,318,931.70 × 816,302.20
  4. Step 4: Simplify right side
    879,287.80x = 1,076,646,848,359.74
  5. Step 5: Solve for x
    x = 1,076,646,848,359.74/879,287.80
  6. Step 6: Final answer
    x = 1,224,453.30

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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.