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Finding the Fourth Proportional to 702,423.25, 969,345.81 and 380,135.70

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Solution

The fourth proportional to 702,423.25, 969,345.81 and 380,135.70 is: 524,588.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,423.25 : 969,345.81 = 380,135.70 : x
  2. Step 2: Convert to fraction form
    702,423.25/969,345.81 = 380,135.70/x
  3. Step 3: Cross multiply
    702,423.25x = 969,345.81 × 380,135.70
  4. Step 4: Simplify right side
    702,423.25x = 368,482,943,179.69
  5. Step 5: Solve for x
    x = 368,482,943,179.69/702,423.25
  6. Step 6: Final answer
    x = 524,588.19

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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.