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Finding the Fourth Proportional to 580,630,215.60, 870,945,323.40 and 521,507,732.40

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Solution

The fourth proportional to 580,630,215.60, 870,945,323.40 and 521,507,732.40 is: 782,261,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,630,215.60 : 870,945,323.40 = 521,507,732.40 : x
  2. Step 2: Convert to fraction form
    580,630,215.60/870,945,323.40 = 521,507,732.40/x
  3. Step 3: Cross multiply
    580,630,215.60x = 870,945,323.40 × 521,507,732.40
  4. Step 4: Simplify right side
    580,630,215.60x = 454,204,720,650,718,656
  5. Step 5: Solve for x
    x = 454,204,720,650,718,656/580,630,215.60
  6. Step 6: Final answer
    x = 782,261,598.60

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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.