Home / 899,070.70-1,240,720.05-491,176.30

Finding the Fourth Proportional to 899,070.70, 1,240,720.05 and 491,176.30

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Solution

The fourth proportional to 899,070.70, 1,240,720.05 and 491,176.30 is: 677,824.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,070.70 : 1,240,720.05 = 491,176.30 : x
  2. Step 2: Convert to fraction form
    899,070.70/1,240,720.05 = 491,176.30/x
  3. Step 3: Cross multiply
    899,070.70x = 1,240,720.05 × 491,176.30
  4. Step 4: Simplify right side
    899,070.70x = 609,412,283,494.82
  5. Step 5: Solve for x
    x = 609,412,283,494.82/899,070.70
  6. Step 6: Final answer
    x = 677,824.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.