Home / 723,184.86-997,928.02-400,867.56

Finding the Fourth Proportional to 723,184.86, 997,928.02 and 400,867.56

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Solution

The fourth proportional to 723,184.86, 997,928.02 and 400,867.56 is: 553,160.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,184.86 : 997,928.02 = 400,867.56 : x
  2. Step 2: Convert to fraction form
    723,184.86/997,928.02 = 400,867.56/x
  3. Step 3: Cross multiply
    723,184.86x = 997,928.02 × 400,867.56
  4. Step 4: Simplify right side
    723,184.86x = 400,036,970,433.03
  5. Step 5: Solve for x
    x = 400,036,970,433.03/723,184.86
  6. Step 6: Final answer
    x = 553,160.05

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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.