Home / 781,505.48-1,172,245.40-249,019.30

Finding the Fourth Proportional to 781,505.48, 1,172,245.40 and 249,019.30

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Solution

The fourth proportional to 781,505.48, 1,172,245.40 and 249,019.30 is: 373,524.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,505.48 : 1,172,245.40 = 249,019.30 : x
  2. Step 2: Convert to fraction form
    781,505.48/1,172,245.40 = 249,019.30/x
  3. Step 3: Cross multiply
    781,505.48x = 1,172,245.40 × 249,019.30
  4. Step 4: Simplify right side
    781,505.48x = 291,911,728,936.22
  5. Step 5: Solve for x
    x = 291,911,728,936.22/781,505.48
  6. Step 6: Final answer
    x = 373,524.87

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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.