Home / 672,727.43-928,588.81-400,880.59

Finding the Fourth Proportional to 672,727.43, 928,588.81 and 400,880.59

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Solution

The fourth proportional to 672,727.43, 928,588.81 and 400,880.59 is: 553,349.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,727.43 : 928,588.81 = 400,880.59 : x
  2. Step 2: Convert to fraction form
    672,727.43/928,588.81 = 400,880.59/x
  3. Step 3: Cross multiply
    672,727.43x = 928,588.81 × 400,880.59
  4. Step 4: Simplify right side
    672,727.43x = 372,253,232,671.49
  5. Step 5: Solve for x
    x = 372,253,232,671.49/672,727.43
  6. Step 6: Final answer
    x = 553,349.27

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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.