Home / 724,583.05-999,955.83-402,293.16

Finding the Fourth Proportional to 724,583.05, 999,955.83 and 402,293.16

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Solution

The fourth proportional to 724,583.05, 999,955.83 and 402,293.16 is: 555,181.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,583.05 : 999,955.83 = 402,293.16 : x
  2. Step 2: Convert to fraction form
    724,583.05/999,955.83 = 402,293.16/x
  3. Step 3: Cross multiply
    724,583.05x = 999,955.83 × 402,293.16
  4. Step 4: Simplify right side
    724,583.05x = 402,275,390,711.12
  5. Step 5: Solve for x
    x = 402,275,390,711.12/724,583.05
  6. Step 6: Final answer
    x = 555,181.89

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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.