Home / 813,921.84-1,123,279.47-451,462.82

Finding the Fourth Proportional to 813,921.84, 1,123,279.47 and 451,462.82

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Solution

The fourth proportional to 813,921.84, 1,123,279.47 and 451,462.82 is: 623,056.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,921.84 : 1,123,279.47 = 451,462.82 : x
  2. Step 2: Convert to fraction form
    813,921.84/1,123,279.47 = 451,462.82/x
  3. Step 3: Cross multiply
    813,921.84x = 1,123,279.47 × 451,462.82
  4. Step 4: Simplify right side
    813,921.84x = 507,118,911,557.91
  5. Step 5: Solve for x
    x = 507,118,911,557.91/813,921.84
  6. Step 6: Final answer
    x = 623,056.03

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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.