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Finding the Fourth Proportional to 718,805.22, 992,269.95 and 464,280.54

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Solution

The fourth proportional to 718,805.22, 992,269.95 and 464,280.54 is: 640,913.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,805.22 : 992,269.95 = 464,280.54 : x
  2. Step 2: Convert to fraction form
    718,805.22/992,269.95 = 464,280.54/x
  3. Step 3: Cross multiply
    718,805.22x = 992,269.95 × 464,280.54
  4. Step 4: Simplify right side
    718,805.22x = 460,691,628,211.77
  5. Step 5: Solve for x
    x = 460,691,628,211.77/718,805.22
  6. Step 6: Final answer
    x = 640,913.03

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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.