Home / 689,016.48-950,930.16-387,210.24

Finding the Fourth Proportional to 689,016.48, 950,930.16 and 387,210.24

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Solution

The fourth proportional to 689,016.48, 950,930.16 and 387,210.24 is: 534,399.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,016.48 : 950,930.16 = 387,210.24 : x
  2. Step 2: Convert to fraction form
    689,016.48/950,930.16 = 387,210.24/x
  3. Step 3: Cross multiply
    689,016.48x = 950,930.16 × 387,210.24
  4. Step 4: Simplify right side
    689,016.48x = 368,209,895,476.84
  5. Step 5: Solve for x
    x = 368,209,895,476.84/689,016.48
  6. Step 6: Final answer
    x = 534,399.26

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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.