Home / 908,840.80-1,363,261.20-310,477.60

Finding the Fourth Proportional to 908,840.80, 1,363,261.20 and 310,477.60

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Solution

The fourth proportional to 908,840.80, 1,363,261.20 and 310,477.60 is: 465,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,840.80 : 1,363,261.20 = 310,477.60 : x
  2. Step 2: Convert to fraction form
    908,840.80/1,363,261.20 = 310,477.60/x
  3. Step 3: Cross multiply
    908,840.80x = 1,363,261.20 × 310,477.60
  4. Step 4: Simplify right side
    908,840.80x = 423,262,065,549.12
  5. Step 5: Solve for x
    x = 423,262,065,549.12/908,840.80
  6. Step 6: Final answer
    x = 465,716.40

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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.