Home / 1,216,311.48-1,678,776.30-707,307.48

Finding the Fourth Proportional to 1,216,311.48, 1,678,776.30 and 707,307.48

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Solution

The fourth proportional to 1,216,311.48, 1,678,776.30 and 707,307.48 is: 976,239.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,311.48 : 1,678,776.30 = 707,307.48 : x
  2. Step 2: Convert to fraction form
    1,216,311.48/1,678,776.30 = 707,307.48/x
  3. Step 3: Cross multiply
    1,216,311.48x = 1,678,776.30 × 707,307.48
  4. Step 4: Simplify right side
    1,216,311.48x = 1,187,411,034,236.72
  5. Step 5: Solve for x
    x = 1,187,411,034,236.72/1,216,311.48
  6. Step 6: Final answer
    x = 976,239.27

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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.