Home / 724,302.02-1,087,519.55-405,079.32

Finding the Fourth Proportional to 724,302.02, 1,087,519.55 and 405,079.32

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Solution

The fourth proportional to 724,302.02, 1,087,519.55 and 405,079.32 is: 608,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,302.02 : 1,087,519.55 = 405,079.32 : x
  2. Step 2: Convert to fraction form
    724,302.02/1,087,519.55 = 405,079.32/x
  3. Step 3: Cross multiply
    724,302.02x = 1,087,519.55 × 405,079.32
  4. Step 4: Simplify right side
    724,302.02x = 440,531,682,519.51
  5. Step 5: Solve for x
    x = 440,531,682,519.51/724,302.02
  6. Step 6: Final answer
    x = 608,215.45

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1.5x scale

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.