Home / 1,028,265.21-1,421,714.76-900,574.79

Finding the Fourth Proportional to 1,028,265.21, 1,421,714.76 and 900,574.79

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Solution

The fourth proportional to 1,028,265.21, 1,421,714.76 and 900,574.79 is: 1,245,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,265.21 : 1,421,714.76 = 900,574.79 : x
  2. Step 2: Convert to fraction form
    1,028,265.21/1,421,714.76 = 900,574.79/x
  3. Step 3: Cross multiply
    1,028,265.21x = 1,421,714.76 × 900,574.79
  4. Step 4: Simplify right side
    1,028,265.21x = 1,280,360,464,318.33
  5. Step 5: Solve for x
    x = 1,280,360,464,318.33/1,028,265.21
  6. Step 6: Final answer
    x = 1,245,165.60

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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.