Home / 637,739.52-880,047.32-396,016.90

Finding the Fourth Proportional to 637,739.52, 880,047.32 and 396,016.90

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Solution

The fourth proportional to 637,739.52, 880,047.32 and 396,016.90 is: 546,482.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,739.52 : 880,047.32 = 396,016.90 : x
  2. Step 2: Convert to fraction form
    637,739.52/880,047.32 = 396,016.90/x
  3. Step 3: Cross multiply
    637,739.52x = 880,047.32 × 396,016.90
  4. Step 4: Simplify right side
    637,739.52x = 348,513,611,519.71
  5. Step 5: Solve for x
    x = 348,513,611,519.71/637,739.52
  6. Step 6: Final answer
    x = 546,482.69

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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.