Home / 670,814.40-1,006,270.20-404,000.40

Finding the Fourth Proportional to 670,814.40, 1,006,270.20 and 404,000.40

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Solution

The fourth proportional to 670,814.40, 1,006,270.20 and 404,000.40 is: 606,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,814.40 : 1,006,270.20 = 404,000.40 : x
  2. Step 2: Convert to fraction form
    670,814.40/1,006,270.20 = 404,000.40/x
  3. Step 3: Cross multiply
    670,814.40x = 1,006,270.20 × 404,000.40
  4. Step 4: Simplify right side
    670,814.40x = 406,533,563,308.08
  5. Step 5: Solve for x
    x = 406,533,563,308.08/670,814.40
  6. Step 6: Final answer
    x = 606,029.87

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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.