Home / 811,747.17-1,216,455.84-456,012.45

Finding the Fourth Proportional to 811,747.17, 1,216,455.84 and 456,012.45

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Solution

The fourth proportional to 811,747.17, 1,216,455.84 and 456,012.45 is: 683,364.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,747.17 : 1,216,455.84 = 456,012.45 : x
  2. Step 2: Convert to fraction form
    811,747.17/1,216,455.84 = 456,012.45/x
  3. Step 3: Cross multiply
    811,747.17x = 1,216,455.84 × 456,012.45
  4. Step 4: Simplify right side
    811,747.17x = 554,719,007,915.21
  5. Step 5: Solve for x
    x = 554,719,007,915.21/811,747.17
  6. Step 6: Final answer
    x = 683,364.26

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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.