Home / 812,827.66-1,219,412.69-307,377.45

Finding the Fourth Proportional to 812,827.66, 1,219,412.69 and 307,377.45

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Solution

The fourth proportional to 812,827.66, 1,219,412.69 and 307,377.45 is: 461,130.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,827.66 : 1,219,412.69 = 307,377.45 : x
  2. Step 2: Convert to fraction form
    812,827.66/1,219,412.69 = 307,377.45/x
  3. Step 3: Cross multiply
    812,827.66x = 1,219,412.69 × 307,377.45
  4. Step 4: Simplify right side
    812,827.66x = 374,819,963,149.84
  5. Step 5: Solve for x
    x = 374,819,963,149.84/812,827.66
  6. Step 6: Final answer
    x = 461,130.92

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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.