Home / 847,079.78-1,270,316.22-307,199.69

Finding the Fourth Proportional to 847,079.78, 1,270,316.22 and 307,199.69

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Solution

The fourth proportional to 847,079.78, 1,270,316.22 and 307,199.69 is: 460,689.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,079.78 : 1,270,316.22 = 307,199.69 : x
  2. Step 2: Convert to fraction form
    847,079.78/1,270,316.22 = 307,199.69/x
  3. Step 3: Cross multiply
    847,079.78x = 1,270,316.22 × 307,199.69
  4. Step 4: Simplify right side
    847,079.78x = 390,240,746,246.08
  5. Step 5: Solve for x
    x = 390,240,746,246.08/847,079.78
  6. Step 6: Final answer
    x = 460,689.49

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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.