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Finding the Fourth Proportional to 632,743.60, 948,078.60 and 539,431.60

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Solution

The fourth proportional to 632,743.60, 948,078.60 and 539,431.60 is: 808,263.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,743.60 : 948,078.60 = 539,431.60 : x
  2. Step 2: Convert to fraction form
    632,743.60/948,078.60 = 539,431.60/x
  3. Step 3: Cross multiply
    632,743.60x = 948,078.60 × 539,431.60
  4. Step 4: Simplify right side
    632,743.60x = 511,423,556,123.76
  5. Step 5: Solve for x
    x = 511,423,556,123.76/632,743.60
  6. Step 6: Final answer
    x = 808,263.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.