Home / 724,289.96-999,439.08-402,013.64

Finding the Fourth Proportional to 724,289.96, 999,439.08 and 402,013.64

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Solution

The fourth proportional to 724,289.96, 999,439.08 and 402,013.64 is: 554,733.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,289.96 : 999,439.08 = 402,013.64 : x
  2. Step 2: Convert to fraction form
    724,289.96/999,439.08 = 402,013.64/x
  3. Step 3: Cross multiply
    724,289.96x = 999,439.08 × 402,013.64
  4. Step 4: Simplify right side
    724,289.96x = 401,788,142,509.05
  5. Step 5: Solve for x
    x = 401,788,142,509.05/724,289.96
  6. Step 6: Final answer
    x = 554,733.83

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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.