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Finding the Fourth Proportional to 646,841.50, 892,642.68 and 360,371.84

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Solution

The fourth proportional to 646,841.50, 892,642.68 and 360,371.84 is: 497,313.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,841.50 : 892,642.68 = 360,371.84 : x
  2. Step 2: Convert to fraction form
    646,841.50/892,642.68 = 360,371.84/x
  3. Step 3: Cross multiply
    646,841.50x = 892,642.68 × 360,371.84
  4. Step 4: Simplify right side
    646,841.50x = 321,683,280,590.92
  5. Step 5: Solve for x
    x = 321,683,280,590.92/646,841.50
  6. Step 6: Final answer
    x = 497,313.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.