Home / 850,005.60-1,275,008.40-289,040.10

Finding the Fourth Proportional to 850,005.60, 1,275,008.40 and 289,040.10

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Solution

The fourth proportional to 850,005.60, 1,275,008.40 and 289,040.10 is: 433,560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,005.60 : 1,275,008.40 = 289,040.10 : x
  2. Step 2: Convert to fraction form
    850,005.60/1,275,008.40 = 289,040.10/x
  3. Step 3: Cross multiply
    850,005.60x = 1,275,008.40 × 289,040.10
  4. Step 4: Simplify right side
    850,005.60x = 368,528,555,436.84
  5. Step 5: Solve for x
    x = 368,528,555,436.84/850,005.60
  6. Step 6: Final answer
    x = 433,560.15

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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.