Home / 864,078.40-1,296,117.60-365,442.40

Finding the Fourth Proportional to 864,078.40, 1,296,117.60 and 365,442.40

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Solution

The fourth proportional to 864,078.40, 1,296,117.60 and 365,442.40 is: 548,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,078.40 : 1,296,117.60 = 365,442.40 : x
  2. Step 2: Convert to fraction form
    864,078.40/1,296,117.60 = 365,442.40/x
  3. Step 3: Cross multiply
    864,078.40x = 1,296,117.60 × 365,442.40
  4. Step 4: Simplify right side
    864,078.40x = 473,656,326,426.24
  5. Step 5: Solve for x
    x = 473,656,326,426.24/864,078.40
  6. Step 6: Final answer
    x = 548,163.60

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Double scale
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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.