Home / 816,743.66-1,225,364.70-417,664.76

Finding the Fourth Proportional to 816,743.66, 1,225,364.70 and 417,664.76

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Solution

The fourth proportional to 816,743.66, 1,225,364.70 and 417,664.76 is: 626,624.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,743.66 : 1,225,364.70 = 417,664.76 : x
  2. Step 2: Convert to fraction form
    816,743.66/1,225,364.70 = 417,664.76/x
  3. Step 3: Cross multiply
    816,743.66x = 1,225,364.70 × 417,664.76
  4. Step 4: Simplify right side
    816,743.66x = 511,791,653,337.97
  5. Step 5: Solve for x
    x = 511,791,653,337.97/816,743.66
  6. Step 6: Final answer
    x = 626,624.58

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1.5x scale

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.