Home / 778,725.38-1,074,639.01-434,557.70

Finding the Fourth Proportional to 778,725.38, 1,074,639.01 and 434,557.70

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Solution

The fourth proportional to 778,725.38, 1,074,639.01 and 434,557.70 is: 599,688.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,725.38 : 1,074,639.01 = 434,557.70 : x
  2. Step 2: Convert to fraction form
    778,725.38/1,074,639.01 = 434,557.70/x
  3. Step 3: Cross multiply
    778,725.38x = 1,074,639.01 × 434,557.70
  4. Step 4: Simplify right side
    778,725.38x = 466,992,648,969.89
  5. Step 5: Solve for x
    x = 466,992,648,969.89/778,725.38
  6. Step 6: Final answer
    x = 599,688.49

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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.