Home / 689,016.20-1,033,547.36-239,774.80

Finding the Fourth Proportional to 689,016.20, 1,033,547.36 and 239,774.80

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Solution

The fourth proportional to 689,016.20, 1,033,547.36 and 239,774.80 is: 359,670.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,016.20 : 1,033,547.36 = 239,774.80 : x
  2. Step 2: Convert to fraction form
    689,016.20/1,033,547.36 = 239,774.80/x
  3. Step 3: Cross multiply
    689,016.20x = 1,033,547.36 × 239,774.80
  4. Step 4: Simplify right side
    689,016.20x = 247,818,611,534.53
  5. Step 5: Solve for x
    x = 247,818,611,534.53/689,016.20
  6. Step 6: Final answer
    x = 359,670.22

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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.