Home / 771,645.36-1,064,607.90-449,287.22

Finding the Fourth Proportional to 771,645.36, 1,064,607.90 and 449,287.22

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Solution

The fourth proportional to 771,645.36, 1,064,607.90 and 449,287.22 is: 619,863.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,645.36 : 1,064,607.90 = 449,287.22 : x
  2. Step 2: Convert to fraction form
    771,645.36/1,064,607.90 = 449,287.22/x
  3. Step 3: Cross multiply
    771,645.36x = 1,064,607.90 × 449,287.22
  4. Step 4: Simplify right side
    771,645.36x = 478,314,723,781.04
  5. Step 5: Solve for x
    x = 478,314,723,781.04/771,645.36
  6. Step 6: Final answer
    x = 619,863.41

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1.5x scale

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.