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Finding the Fourth Proportional to 582,455.40, 803,842.70 and 340,722.65

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Solution

The fourth proportional to 582,455.40, 803,842.70 and 340,722.65 is: 470,228.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,455.40 : 803,842.70 = 340,722.65 : x
  2. Step 2: Convert to fraction form
    582,455.40/803,842.70 = 340,722.65/x
  3. Step 3: Cross multiply
    582,455.40x = 803,842.70 × 340,722.65
  4. Step 4: Simplify right side
    582,455.40x = 273,887,409,204.33
  5. Step 5: Solve for x
    x = 273,887,409,204.33/582,455.40
  6. Step 6: Final answer
    x = 470,228.98

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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.