Home / 1,475,415.40-2,212,820.70-410,189.80

Finding the Fourth Proportional to 1,475,415.40, 2,212,820.70 and 410,189.80

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Solution

The fourth proportional to 1,475,415.40, 2,212,820.70 and 410,189.80 is: 615,200.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475,415.40 : 2,212,820.70 = 410,189.80 : x
  2. Step 2: Convert to fraction form
    1,475,415.40/2,212,820.70 = 410,189.80/x
  3. Step 3: Cross multiply
    1,475,415.40x = 2,212,820.70 × 410,189.80
  4. Step 4: Simplify right side
    1,475,415.40x = 907,676,480,368.86
  5. Step 5: Solve for x
    x = 907,676,480,368.86/1,475,415.40
  6. Step 6: Final answer
    x = 615,200.63

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1.5x scale

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.