Home / 864,743.40-1,297,115.10-549,815.40

Finding the Fourth Proportional to 864,743.40, 1,297,115.10 and 549,815.40

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Solution

The fourth proportional to 864,743.40, 1,297,115.10 and 549,815.40 is: 824,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,743.40 : 1,297,115.10 = 549,815.40 : x
  2. Step 2: Convert to fraction form
    864,743.40/1,297,115.10 = 549,815.40/x
  3. Step 3: Cross multiply
    864,743.40x = 1,297,115.10 × 549,815.40
  4. Step 4: Simplify right side
    864,743.40x = 713,173,857,552.54
  5. Step 5: Solve for x
    x = 713,173,857,552.54/864,743.40
  6. Step 6: Final answer
    x = 824,723.10

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Double scale
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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.