Home / 389,322.30-583,983.45-310,590.30

Finding the Fourth Proportional to 389,322.30, 583,983.45 and 310,590.30

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Solution

The fourth proportional to 389,322.30, 583,983.45 and 310,590.30 is: 465,885.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,322.30 : 583,983.45 = 310,590.30 : x
  2. Step 2: Convert to fraction form
    389,322.30/583,983.45 = 310,590.30/x
  3. Step 3: Cross multiply
    389,322.30x = 583,983.45 × 310,590.30
  4. Step 4: Simplify right side
    389,322.30x = 181,379,594,930.54
  5. Step 5: Solve for x
    x = 181,379,594,930.54/389,322.30
  6. Step 6: Final answer
    x = 465,885.45

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Similar ratio
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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.