Home / 813,984.16-1,123,412.88-451,488.64

Finding the Fourth Proportional to 813,984.16, 1,123,412.88 and 451,488.64

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Solution

The fourth proportional to 813,984.16, 1,123,412.88 and 451,488.64 is: 623,117.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,984.16 : 1,123,412.88 = 451,488.64 : x
  2. Step 2: Convert to fraction form
    813,984.16/1,123,412.88 = 451,488.64/x
  3. Step 3: Cross multiply
    813,984.16x = 1,123,412.88 × 451,488.64
  4. Step 4: Simplify right side
    813,984.16x = 507,208,153,349.68
  5. Step 5: Solve for x
    x = 507,208,153,349.68/813,984.16
  6. Step 6: Final answer
    x = 623,117.97

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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.