Home / 724,799.66-1,000,236.89-402,539.81

Finding the Fourth Proportional to 724,799.66, 1,000,236.89 and 402,539.81

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Solution

The fourth proportional to 724,799.66, 1,000,236.89 and 402,539.81 is: 555,512.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,799.66 : 1,000,236.89 = 402,539.81 : x
  2. Step 2: Convert to fraction form
    724,799.66/1,000,236.89 = 402,539.81/x
  3. Step 3: Cross multiply
    724,799.66x = 1,000,236.89 × 402,539.81
  4. Step 4: Simplify right side
    724,799.66x = 402,635,165,642.89
  5. Step 5: Solve for x
    x = 402,635,165,642.89/724,799.66
  6. Step 6: Final answer
    x = 555,512.35

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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.