Home / 557,760.10-771,201.93-486,901.30

Finding the Fourth Proportional to 557,760.10, 771,201.93 and 486,901.30

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Solution

The fourth proportional to 557,760.10, 771,201.93 and 486,901.30 is: 673,227.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,760.10 : 771,201.93 = 486,901.30 : x
  2. Step 2: Convert to fraction form
    557,760.10/771,201.93 = 486,901.30/x
  3. Step 3: Cross multiply
    557,760.10x = 771,201.93 × 486,901.30
  4. Step 4: Simplify right side
    557,760.10x = 375,499,222,279.51
  5. Step 5: Solve for x
    x = 375,499,222,279.51/557,760.10
  6. Step 6: Final answer
    x = 673,227.11

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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.