Home / 864,484.90-1,192,990.53-482,511.58

Finding the Fourth Proportional to 864,484.90, 1,192,990.53 and 482,511.58

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Solution

The fourth proportional to 864,484.90, 1,192,990.53 and 482,511.58 is: 665,866.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,484.90 : 1,192,990.53 = 482,511.58 : x
  2. Step 2: Convert to fraction form
    864,484.90/1,192,990.53 = 482,511.58/x
  3. Step 3: Cross multiply
    864,484.90x = 1,192,990.53 × 482,511.58
  4. Step 4: Simplify right side
    864,484.90x = 575,631,745,555.34
  5. Step 5: Solve for x
    x = 575,631,745,555.34/864,484.90
  6. Step 6: Final answer
    x = 665,866.74

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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.