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Finding the Fourth Proportional to 673,005.33, 928,724.69 and 400,932.30

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Solution

The fourth proportional to 673,005.33, 928,724.69 and 400,932.30 is: 553,273.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,005.33 : 928,724.69 = 400,932.30 : x
  2. Step 2: Convert to fraction form
    673,005.33/928,724.69 = 400,932.30/x
  3. Step 3: Cross multiply
    673,005.33x = 928,724.69 × 400,932.30
  4. Step 4: Simplify right side
    673,005.33x = 372,355,724,023.83
  5. Step 5: Solve for x
    x = 372,355,724,023.83/673,005.33
  6. Step 6: Final answer
    x = 553,273.07

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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.