Home / 670,743.18-1,006,145.93-215,353

Finding the Fourth Proportional to 670,743.18, 1,006,145.93 and 215,353

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Solution

The fourth proportional to 670,743.18, 1,006,145.93 and 215,353 is: 323,039.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,743.18 : 1,006,145.93 = 215,353 : x
  2. Step 2: Convert to fraction form
    670,743.18/1,006,145.93 = 215,353/x
  3. Step 3: Cross multiply
    670,743.18x = 1,006,145.93 × 215,353
  4. Step 4: Simplify right side
    670,743.18x = 216,676,543,386.53
  5. Step 5: Solve for x
    x = 216,676,543,386.53/670,743.18
  6. Step 6: Final answer
    x = 323,039.50

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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.