Home / 670,205.60-1,005,308.40-404,266.40

Finding the Fourth Proportional to 670,205.60, 1,005,308.40 and 404,266.40

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Solution

The fourth proportional to 670,205.60, 1,005,308.40 and 404,266.40 is: 606,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,205.60 : 1,005,308.40 = 404,266.40 : x
  2. Step 2: Convert to fraction form
    670,205.60/1,005,308.40 = 404,266.40/x
  3. Step 3: Cross multiply
    670,205.60x = 1,005,308.40 × 404,266.40
  4. Step 4: Simplify right side
    670,205.60x = 406,412,407,757.76
  5. Step 5: Solve for x
    x = 406,412,407,757.76/670,205.60
  6. Step 6: Final answer
    x = 606,399.60

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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.