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Finding the Fourth Proportional to 788,558.40, 1,183,420.80 and 522,230.40

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Solution

The fourth proportional to 788,558.40, 1,183,420.80 and 522,230.40 is: 783,731.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,558.40 : 1,183,420.80 = 522,230.40 : x
  2. Step 2: Convert to fraction form
    788,558.40/1,183,420.80 = 522,230.40/x
  3. Step 3: Cross multiply
    788,558.40x = 1,183,420.80 × 522,230.40
  4. Step 4: Simplify right side
    788,558.40x = 618,018,317,752.32
  5. Step 5: Solve for x
    x = 618,018,317,752.32/788,558.40
  6. Step 6: Final answer
    x = 783,731.83

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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.