Home / 850,637.10-1,275,955.65-429,858.30

Finding the Fourth Proportional to 850,637.10, 1,275,955.65 and 429,858.30

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Solution

The fourth proportional to 850,637.10, 1,275,955.65 and 429,858.30 is: 644,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,637.10 : 1,275,955.65 = 429,858.30 : x
  2. Step 2: Convert to fraction form
    850,637.10/1,275,955.65 = 429,858.30/x
  3. Step 3: Cross multiply
    850,637.10x = 1,275,955.65 × 429,858.30
  4. Step 4: Simplify right side
    850,637.10x = 548,480,126,584.40
  5. Step 5: Solve for x
    x = 548,480,126,584.40/850,637.10
  6. Step 6: Final answer
    x = 644,787.45

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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.