Home / 637,743.85-880,148.72-476,318.77

Finding the Fourth Proportional to 637,743.85, 880,148.72 and 476,318.77

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Solution

The fourth proportional to 637,743.85, 880,148.72 and 476,318.77 is: 657,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,743.85 : 880,148.72 = 476,318.77 : x
  2. Step 2: Convert to fraction form
    637,743.85/880,148.72 = 476,318.77/x
  3. Step 3: Cross multiply
    637,743.85x = 880,148.72 × 476,318.77
  4. Step 4: Simplify right side
    637,743.85x = 419,231,355,727.47
  5. Step 5: Solve for x
    x = 419,231,355,727.47/637,743.85
  6. Step 6: Final answer
    x = 657,366.36

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Half scale
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Double scale
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Similar ratio
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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.