Home / 816,953.54-1,127,316.89-472,720.79

Finding the Fourth Proportional to 816,953.54, 1,127,316.89 and 472,720.79

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Solution

The fourth proportional to 816,953.54, 1,127,316.89 and 472,720.79 is: 652,308.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,953.54 : 1,127,316.89 = 472,720.79 : x
  2. Step 2: Convert to fraction form
    816,953.54/1,127,316.89 = 472,720.79/x
  3. Step 3: Cross multiply
    816,953.54x = 1,127,316.89 × 472,720.79
  4. Step 4: Simplify right side
    816,953.54x = 532,906,122,820.96
  5. Step 5: Solve for x
    x = 532,906,122,820.96/816,953.54
  6. Step 6: Final answer
    x = 652,308.97

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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.