Home / 790,167.28-1,185,439.56-257,688.76

Finding the Fourth Proportional to 790,167.28, 1,185,439.56 and 257,688.76

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Solution

The fourth proportional to 790,167.28, 1,185,439.56 and 257,688.76 is: 386,594.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,167.28 : 1,185,439.56 = 257,688.76 : x
  2. Step 2: Convert to fraction form
    790,167.28/1,185,439.56 = 257,688.76/x
  3. Step 3: Cross multiply
    790,167.28x = 1,185,439.56 × 257,688.76
  4. Step 4: Simplify right side
    790,167.28x = 305,474,450,271.35
  5. Step 5: Solve for x
    x = 305,474,450,271.35/790,167.28
  6. Step 6: Final answer
    x = 386,594.66

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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.