Home / 563,146.72-777,136.29-305,017.25

Finding the Fourth Proportional to 563,146.72, 777,136.29 and 305,017.25

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Solution

The fourth proportional to 563,146.72, 777,136.29 and 305,017.25 is: 420,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,146.72 : 777,136.29 = 305,017.25 : x
  2. Step 2: Convert to fraction form
    563,146.72/777,136.29 = 305,017.25/x
  3. Step 3: Cross multiply
    563,146.72x = 777,136.29 × 305,017.25
  4. Step 4: Simplify right side
    563,146.72x = 237,039,969,021.51
  5. Step 5: Solve for x
    x = 237,039,969,021.51/563,146.72
  6. Step 6: Final answer
    x = 420,920.45

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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.