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Finding the Fourth Proportional to 702,762.89, 969,813.41 and 380,473.20

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Solution

The fourth proportional to 702,762.89, 969,813.41 and 380,473.20 is: 525,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,762.89 : 969,813.41 = 380,473.20 : x
  2. Step 2: Convert to fraction form
    702,762.89/969,813.41 = 380,473.20/x
  3. Step 3: Cross multiply
    702,762.89x = 969,813.41 × 380,473.20
  4. Step 4: Simplify right side
    702,762.89x = 368,988,009,603.25
  5. Step 5: Solve for x
    x = 368,988,009,603.25/702,762.89
  6. Step 6: Final answer
    x = 525,053.35

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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.