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Finding the Fourth Proportional to 702,424.25, 969,347.19 and 380,136.69

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Solution

The fourth proportional to 702,424.25, 969,347.19 and 380,136.69 is: 524,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,424.25 : 969,347.19 = 380,136.69 : x
  2. Step 2: Convert to fraction form
    702,424.25/969,347.19 = 380,136.69/x
  3. Step 3: Cross multiply
    702,424.25x = 969,347.19 × 380,136.69
  4. Step 4: Simplify right side
    702,424.25x = 368,484,432,267.40
  5. Step 5: Solve for x
    x = 368,484,432,267.40/702,424.25
  6. Step 6: Final answer
    x = 524,589.57

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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.