Home / 550,548.78-759,319.02-454,889.40

Finding the Fourth Proportional to 550,548.78, 759,319.02 and 454,889.40

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Solution

The fourth proportional to 550,548.78, 759,319.02 and 454,889.40 is: 627,385.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,548.78 : 759,319.02 = 454,889.40 : x
  2. Step 2: Convert to fraction form
    550,548.78/759,319.02 = 454,889.40/x
  3. Step 3: Cross multiply
    550,548.78x = 759,319.02 × 454,889.40
  4. Step 4: Simplify right side
    550,548.78x = 345,406,173,416.39
  5. Step 5: Solve for x
    x = 345,406,173,416.39/550,548.78
  6. Step 6: Final answer
    x = 627,385.23

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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.