Home / 712,934.80-1,069,403.02-214,298.80

Finding the Fourth Proportional to 712,934.80, 1,069,403.02 and 214,298.80

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Solution

The fourth proportional to 712,934.80, 1,069,403.02 and 214,298.80 is: 321,448.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,934.80 : 1,069,403.02 = 214,298.80 : x
  2. Step 2: Convert to fraction form
    712,934.80/1,069,403.02 = 214,298.80/x
  3. Step 3: Cross multiply
    712,934.80x = 1,069,403.02 × 214,298.80
  4. Step 4: Simplify right side
    712,934.80x = 229,171,783,902.38
  5. Step 5: Solve for x
    x = 229,171,783,902.38/712,934.80
  6. Step 6: Final answer
    x = 321,448.45

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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.