Home / 850,003.60-1,275,005.40-289,038.10

Finding the Fourth Proportional to 850,003.60, 1,275,005.40 and 289,038.10

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Solution

The fourth proportional to 850,003.60, 1,275,005.40 and 289,038.10 is: 433,557.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,003.60 : 1,275,005.40 = 289,038.10 : x
  2. Step 2: Convert to fraction form
    850,003.60/1,275,005.40 = 289,038.10/x
  3. Step 3: Cross multiply
    850,003.60x = 1,275,005.40 × 289,038.10
  4. Step 4: Simplify right side
    850,003.60x = 368,525,138,305.74
  5. Step 5: Solve for x
    x = 368,525,138,305.74/850,003.60
  6. Step 6: Final answer
    x = 433,557.15

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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.