Home / 779,424.60-1,169,136.90-513,339.60

Finding the Fourth Proportional to 779,424.60, 1,169,136.90 and 513,339.60

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Solution

The fourth proportional to 779,424.60, 1,169,136.90 and 513,339.60 is: 770,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,424.60 : 1,169,136.90 = 513,339.60 : x
  2. Step 2: Convert to fraction form
    779,424.60/1,169,136.90 = 513,339.60/x
  3. Step 3: Cross multiply
    779,424.60x = 1,169,136.90 × 513,339.60
  4. Step 4: Simplify right side
    779,424.60x = 600,164,268,591.24
  5. Step 5: Solve for x
    x = 600,164,268,591.24/779,424.60
  6. Step 6: Final answer
    x = 770,009.40

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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.