Home / 778,346.28-1,074,136.88-434,179.68

Finding the Fourth Proportional to 778,346.28, 1,074,136.88 and 434,179.68

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Solution

The fourth proportional to 778,346.28, 1,074,136.88 and 434,179.68 is: 599,178.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,346.28 : 1,074,136.88 = 434,179.68 : x
  2. Step 2: Convert to fraction form
    778,346.28/1,074,136.88 = 434,179.68/x
  3. Step 3: Cross multiply
    778,346.28x = 1,074,136.88 × 434,179.68
  4. Step 4: Simplify right side
    778,346.28x = 466,368,406,834.60
  5. Step 5: Solve for x
    x = 466,368,406,834.60/778,346.28
  6. Step 6: Final answer
    x = 599,178.56

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.