Home / 900,823.44-1,243,586.40-518,776.42

Finding the Fourth Proportional to 900,823.44, 1,243,586.40 and 518,776.42

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Solution

The fourth proportional to 900,823.44, 1,243,586.40 and 518,776.42 is: 716,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,823.44 : 1,243,586.40 = 518,776.42 : x
  2. Step 2: Convert to fraction form
    900,823.44/1,243,586.40 = 518,776.42/x
  3. Step 3: Cross multiply
    900,823.44x = 1,243,586.40 × 518,776.42
  4. Step 4: Simplify right side
    900,823.44x = 645,143,300,552.69
  5. Step 5: Solve for x
    x = 645,143,300,552.69/900,823.44
  6. Step 6: Final answer
    x = 716,170.64

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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.