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Finding the Fourth Proportional to 550,334.28, 759,477.92 and 308,639.20

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Solution

The fourth proportional to 550,334.28, 759,477.92 and 308,639.20 is: 425,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,334.28 : 759,477.92 = 308,639.20 : x
  2. Step 2: Convert to fraction form
    550,334.28/759,477.92 = 308,639.20/x
  3. Step 3: Cross multiply
    550,334.28x = 759,477.92 × 308,639.20
  4. Step 4: Simplify right side
    550,334.28x = 234,404,657,646.46
  5. Step 5: Solve for x
    x = 234,404,657,646.46/550,334.28
  6. Step 6: Final answer
    x = 425,931.41

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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.