Home / 848,320.40-1,272,043.20-315,567.20

Finding the Fourth Proportional to 848,320.40, 1,272,043.20 and 315,567.20

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Solution

The fourth proportional to 848,320.40, 1,272,043.20 and 315,567.20 is: 473,188.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,320.40 : 1,272,043.20 = 315,567.20 : x
  2. Step 2: Convert to fraction form
    848,320.40/1,272,043.20 = 315,567.20/x
  3. Step 3: Cross multiply
    848,320.40x = 1,272,043.20 × 315,567.20
  4. Step 4: Simplify right side
    848,320.40x = 401,415,110,903.04
  5. Step 5: Solve for x
    x = 401,415,110,903.04/848,320.40
  6. Step 6: Final answer
    x = 473,188.09

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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.