Home / 740,713.80-1,111,070.88-208,234.98

Finding the Fourth Proportional to 740,713.80, 1,111,070.88 and 208,234.98

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Solution

The fourth proportional to 740,713.80, 1,111,070.88 and 208,234.98 is: 312,352.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,713.80 : 1,111,070.88 = 208,234.98 : x
  2. Step 2: Convert to fraction form
    740,713.80/1,111,070.88 = 208,234.98/x
  3. Step 3: Cross multiply
    740,713.80x = 1,111,070.88 × 208,234.98
  4. Step 4: Simplify right side
    740,713.80x = 231,363,822,475.38
  5. Step 5: Solve for x
    x = 231,363,822,475.38/740,713.80
  6. Step 6: Final answer
    x = 312,352.52

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.