Home / 738,530.98-1,107,914.50-312,070.84

Finding the Fourth Proportional to 738,530.98, 1,107,914.50 and 312,070.84

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Solution

The fourth proportional to 738,530.98, 1,107,914.50 and 312,070.84 is: 468,156.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,530.98 : 1,107,914.50 = 312,070.84 : x
  2. Step 2: Convert to fraction form
    738,530.98/1,107,914.50 = 312,070.84/x
  3. Step 3: Cross multiply
    738,530.98x = 1,107,914.50 × 312,070.84
  4. Step 4: Simplify right side
    738,530.98x = 345,747,808,663.18
  5. Step 5: Solve for x
    x = 345,747,808,663.18/738,530.98
  6. Step 6: Final answer
    x = 468,156.13

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Similar ratio
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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.