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Finding the Fourth Proportional to 479,451.84, 715,532.16 and 426,309.12

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Solution

The fourth proportional to 479,451.84, 715,532.16 and 426,309.12 is: 636,222.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,451.84 : 715,532.16 = 426,309.12 : x
  2. Step 2: Convert to fraction form
    479,451.84/715,532.16 = 426,309.12/x
  3. Step 3: Cross multiply
    479,451.84x = 715,532.16 × 426,309.12
  4. Step 4: Simplify right side
    479,451.84x = 305,037,885,461.30
  5. Step 5: Solve for x
    x = 305,037,885,461.30/479,451.84
  6. Step 6: Final answer
    x = 636,222.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.