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Finding the Fourth Proportional to 526,903.20, 788,511.60 and 482,666.40

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Solution

The fourth proportional to 526,903.20, 788,511.60 and 482,666.40 is: 722,311.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,903.20 : 788,511.60 = 482,666.40 : x
  2. Step 2: Convert to fraction form
    526,903.20/788,511.60 = 482,666.40/x
  3. Step 3: Cross multiply
    526,903.20x = 788,511.60 × 482,666.40
  4. Step 4: Simplify right side
    526,903.20x = 380,588,055,330.24
  5. Step 5: Solve for x
    x = 380,588,055,330.24/526,903.20
  6. Step 6: Final answer
    x = 722,311.15

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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.