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Finding the Fourth Proportional to 573,410.83, 791,327.25 and 315,307.42

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Solution

The fourth proportional to 573,410.83, 791,327.25 and 315,307.42 is: 435,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,410.83 : 791,327.25 = 315,307.42 : x
  2. Step 2: Convert to fraction form
    573,410.83/791,327.25 = 315,307.42/x
  3. Step 3: Cross multiply
    573,410.83x = 791,327.25 × 315,307.42
  4. Step 4: Simplify right side
    573,410.83x = 249,511,353,573.20
  5. Step 5: Solve for x
    x = 249,511,353,573.20/573,410.83
  6. Step 6: Final answer
    x = 435,135.40

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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.