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Finding the Fourth Proportional to 488,357.60, 732,536.40 and 288,903.20

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Solution

The fourth proportional to 488,357.60, 732,536.40 and 288,903.20 is: 433,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,357.60 : 732,536.40 = 288,903.20 : x
  2. Step 2: Convert to fraction form
    488,357.60/732,536.40 = 288,903.20/x
  3. Step 3: Cross multiply
    488,357.60x = 732,536.40 × 288,903.20
  4. Step 4: Simplify right side
    488,357.60x = 211,632,110,076.48
  5. Step 5: Solve for x
    x = 211,632,110,076.48/488,357.60
  6. Step 6: Final answer
    x = 433,354.80

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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.