Home / 709,745.20-1,064,617.80-511,457.20

Finding the Fourth Proportional to 709,745.20, 1,064,617.80 and 511,457.20

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Solution

The fourth proportional to 709,745.20, 1,064,617.80 and 511,457.20 is: 767,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,745.20 : 1,064,617.80 = 511,457.20 : x
  2. Step 2: Convert to fraction form
    709,745.20/1,064,617.80 = 511,457.20/x
  3. Step 3: Cross multiply
    709,745.20x = 1,064,617.80 × 511,457.20
  4. Step 4: Simplify right side
    709,745.20x = 544,506,439,058.16
  5. Step 5: Solve for x
    x = 544,506,439,058.16/709,745.20
  6. Step 6: Final answer
    x = 767,185.80

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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.