Home / 900,412.20-1,350,180.90-500,628.60

Finding the Fourth Proportional to 900,412.20, 1,350,180.90 and 500,628.60

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Solution

The fourth proportional to 900,412.20, 1,350,180.90 and 500,628.60 is: 750,699.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,412.20 : 1,350,180.90 = 500,628.60 : x
  2. Step 2: Convert to fraction form
    900,412.20/1,350,180.90 = 500,628.60/x
  3. Step 3: Cross multiply
    900,412.20x = 1,350,180.90 × 500,628.60
  4. Step 4: Simplify right side
    900,412.20x = 675,939,173,713.74
  5. Step 5: Solve for x
    x = 675,939,173,713.74/900,412.20
  6. Step 6: Final answer
    x = 750,699.71

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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.