Home / 724,809.15-1,000,238.31-402,519.33

Finding the Fourth Proportional to 724,809.15, 1,000,238.31 and 402,519.33

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Solution

The fourth proportional to 724,809.15, 1,000,238.31 and 402,519.33 is: 555,477.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,809.15 : 1,000,238.31 = 402,519.33 : x
  2. Step 2: Convert to fraction form
    724,809.15/1,000,238.31 = 402,519.33/x
  3. Step 3: Cross multiply
    724,809.15x = 1,000,238.31 × 402,519.33
  4. Step 4: Simplify right side
    724,809.15x = 402,615,254,381.53
  5. Step 5: Solve for x
    x = 402,615,254,381.53/724,809.15
  6. Step 6: Final answer
    x = 555,477.61

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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.