Home / 890,411.28-1,336,055.40-417,014.88

Finding the Fourth Proportional to 890,411.28, 1,336,055.40 and 417,014.88

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Solution

The fourth proportional to 890,411.28, 1,336,055.40 and 417,014.88 is: 625,727.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,411.28 : 1,336,055.40 = 417,014.88 : x
  2. Step 2: Convert to fraction form
    890,411.28/1,336,055.40 = 417,014.88/x
  3. Step 3: Cross multiply
    890,411.28x = 1,336,055.40 × 417,014.88
  4. Step 4: Simplify right side
    890,411.28x = 557,154,982,304.35
  5. Step 5: Solve for x
    x = 557,154,982,304.35/890,411.28
  6. Step 6: Final answer
    x = 625,727.68

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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.