Home / 724,601.58-999,975.69-402,316.62

Finding the Fourth Proportional to 724,601.58, 999,975.69 and 402,316.62

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Solution

The fourth proportional to 724,601.58, 999,975.69 and 402,316.62 is: 555,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,601.58 : 999,975.69 = 402,316.62 : x
  2. Step 2: Convert to fraction form
    724,601.58/999,975.69 = 402,316.62/x
  3. Step 3: Cross multiply
    724,601.58x = 999,975.69 × 402,316.62
  4. Step 4: Simplify right side
    724,601.58x = 402,306,839,682.97
  5. Step 5: Solve for x
    x = 402,306,839,682.97/724,601.58
  6. Step 6: Final answer
    x = 555,211.10

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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.