Home / 885,586.55-1,328,281.40-316,944.68

Finding the Fourth Proportional to 885,586.55, 1,328,281.40 and 316,944.68

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Solution

The fourth proportional to 885,586.55, 1,328,281.40 and 316,944.68 is: 475,381.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,586.55 : 1,328,281.40 = 316,944.68 : x
  2. Step 2: Convert to fraction form
    885,586.55/1,328,281.40 = 316,944.68/x
  3. Step 3: Cross multiply
    885,586.55x = 1,328,281.40 × 316,944.68
  4. Step 4: Simplify right side
    885,586.55x = 420,991,717,423.91
  5. Step 5: Solve for x
    x = 420,991,717,423.91/885,586.55
  6. Step 6: Final answer
    x = 475,381.79

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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.