Home / 847,115.76-1,270,370.16-307,235.64

Finding the Fourth Proportional to 847,115.76, 1,270,370.16 and 307,235.64

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Solution

The fourth proportional to 847,115.76, 1,270,370.16 and 307,235.64 is: 460,743.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,115.76 : 1,270,370.16 = 307,235.64 : x
  2. Step 2: Convert to fraction form
    847,115.76/1,270,370.16 = 307,235.64/x
  3. Step 3: Cross multiply
    847,115.76x = 1,270,370.16 × 307,235.64
  4. Step 4: Simplify right side
    847,115.76x = 390,302,989,144.50
  5. Step 5: Solve for x
    x = 390,302,989,144.50/847,115.76
  6. Step 6: Final answer
    x = 460,743.39

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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.