Home / 827,054.16-1,240,753.40-258,412.28

Finding the Fourth Proportional to 827,054.16, 1,240,753.40 and 258,412.28

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Solution

The fourth proportional to 827,054.16, 1,240,753.40 and 258,412.28 is: 387,672.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,054.16 : 1,240,753.40 = 258,412.28 : x
  2. Step 2: Convert to fraction form
    827,054.16/1,240,753.40 = 258,412.28/x
  3. Step 3: Cross multiply
    827,054.16x = 1,240,753.40 × 258,412.28
  4. Step 4: Simplify right side
    827,054.16x = 320,625,915,011.75
  5. Step 5: Solve for x
    x = 320,625,915,011.75/827,054.16
  6. Step 6: Final answer
    x = 387,672.21

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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.