Home / 756,491.60-1,134,660.60-257,848.40

Finding the Fourth Proportional to 756,491.60, 1,134,660.60 and 257,848.40

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Solution

The fourth proportional to 756,491.60, 1,134,660.60 and 257,848.40 is: 386,746.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,491.60 : 1,134,660.60 = 257,848.40 : x
  2. Step 2: Convert to fraction form
    756,491.60/1,134,660.60 = 257,848.40/x
  3. Step 3: Cross multiply
    756,491.60x = 1,134,660.60 × 257,848.40
  4. Step 4: Simplify right side
    756,491.60x = 292,570,420,253.04
  5. Step 5: Solve for x
    x = 292,570,420,253.04/756,491.60
  6. Step 6: Final answer
    x = 386,746.42

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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.