Home / 1,426,329.60-1,968,076.80-916,915.20

Finding the Fourth Proportional to 1,426,329.60, 1,968,076.80 and 916,915.20

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Solution

The fourth proportional to 1,426,329.60, 1,968,076.80 and 916,915.20 is: 1,265,177.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,329.60 : 1,968,076.80 = 916,915.20 : x
  2. Step 2: Convert to fraction form
    1,426,329.60/1,968,076.80 = 916,915.20/x
  3. Step 3: Cross multiply
    1,426,329.60x = 1,968,076.80 × 916,915.20
  4. Step 4: Simplify right side
    1,426,329.60x = 1,804,559,532,687.36
  5. Step 5: Solve for x
    x = 1,804,559,532,687.36/1,426,329.60
  6. Step 6: Final answer
    x = 1,265,177.09

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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.