Home / 450,061.02-620,519.67-288,631.26

Finding the Fourth Proportional to 450,061.02, 620,519.67 and 288,631.26

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Solution

The fourth proportional to 450,061.02, 620,519.67 and 288,631.26 is: 397,949.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,061.02 : 620,519.67 = 288,631.26 : x
  2. Step 2: Convert to fraction form
    450,061.02/620,519.67 = 288,631.26/x
  3. Step 3: Cross multiply
    450,061.02x = 620,519.67 × 288,631.26
  4. Step 4: Simplify right side
    450,061.02x = 179,101,374,206.88
  5. Step 5: Solve for x
    x = 179,101,374,206.88/450,061.02
  6. Step 6: Final answer
    x = 397,949.09

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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.