Home / 684,673.80-1,027,010.70-347,766.45

Finding the Fourth Proportional to 684,673.80, 1,027,010.70 and 347,766.45

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Solution

The fourth proportional to 684,673.80, 1,027,010.70 and 347,766.45 is: 521,649.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,673.80 : 1,027,010.70 = 347,766.45 : x
  2. Step 2: Convert to fraction form
    684,673.80/1,027,010.70 = 347,766.45/x
  3. Step 3: Cross multiply
    684,673.80x = 1,027,010.70 × 347,766.45
  4. Step 4: Simplify right side
    684,673.80x = 357,159,865,251.02
  5. Step 5: Solve for x
    x = 357,159,865,251.02/684,673.80
  6. Step 6: Final answer
    x = 521,649.68

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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.