Home / 840,720.60-1,160,222.40-458,768.34

Finding the Fourth Proportional to 840,720.60, 1,160,222.40 and 458,768.34

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Solution

The fourth proportional to 840,720.60, 1,160,222.40 and 458,768.34 is: 633,115.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,720.60 : 1,160,222.40 = 458,768.34 : x
  2. Step 2: Convert to fraction form
    840,720.60/1,160,222.40 = 458,768.34/x
  3. Step 3: Cross multiply
    840,720.60x = 1,160,222.40 × 458,768.34
  4. Step 4: Simplify right side
    840,720.60x = 532,273,304,478.82
  5. Step 5: Solve for x
    x = 532,273,304,478.82/840,720.60
  6. Step 6: Final answer
    x = 633,115.57

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1.5x scale

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.