Home / 859,342.40-1,289,013.60-486,094.40

Finding the Fourth Proportional to 859,342.40, 1,289,013.60 and 486,094.40

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Solution

The fourth proportional to 859,342.40, 1,289,013.60 and 486,094.40 is: 729,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,342.40 : 1,289,013.60 = 486,094.40 : x
  2. Step 2: Convert to fraction form
    859,342.40/1,289,013.60 = 486,094.40/x
  3. Step 3: Cross multiply
    859,342.40x = 1,289,013.60 × 486,094.40
  4. Step 4: Simplify right side
    859,342.40x = 626,582,292,483.84
  5. Step 5: Solve for x
    x = 626,582,292,483.84/859,342.40
  6. Step 6: Final answer
    x = 729,141.60

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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.