Home / 705,605.46-1,058,345.76-256,330.20

Finding the Fourth Proportional to 705,605.46, 1,058,345.76 and 256,330.20

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Solution

The fourth proportional to 705,605.46, 1,058,345.76 and 256,330.20 is: 384,472.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,605.46 : 1,058,345.76 = 256,330.20 : x
  2. Step 2: Convert to fraction form
    705,605.46/1,058,345.76 = 256,330.20/x
  3. Step 3: Cross multiply
    705,605.46x = 1,058,345.76 × 256,330.20
  4. Step 4: Simplify right side
    705,605.46x = 271,285,980,329.95
  5. Step 5: Solve for x
    x = 271,285,980,329.95/705,605.46
  6. Step 6: Final answer
    x = 384,472.62

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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.