Home / 400,703.24-553,014.62-255,514.36

Finding the Fourth Proportional to 400,703.24, 553,014.62 and 255,514.36

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Solution

The fourth proportional to 400,703.24, 553,014.62 and 255,514.36 is: 352,637.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,703.24 : 553,014.62 = 255,514.36 : x
  2. Step 2: Convert to fraction form
    400,703.24/553,014.62 = 255,514.36/x
  3. Step 3: Cross multiply
    400,703.24x = 553,014.62 × 255,514.36
  4. Step 4: Simplify right side
    400,703.24x = 141,303,176,699.94
  5. Step 5: Solve for x
    x = 141,303,176,699.94/400,703.24
  6. Step 6: Final answer
    x = 352,637.97

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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.