Home / 788,557.60-1,183,009.20-389,389.60

Finding the Fourth Proportional to 788,557.60, 1,183,009.20 and 389,389.60

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Solution

The fourth proportional to 788,557.60, 1,183,009.20 and 389,389.60 is: 584,169.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,557.60 : 1,183,009.20 = 389,389.60 : x
  2. Step 2: Convert to fraction form
    788,557.60/1,183,009.20 = 389,389.60/x
  3. Step 3: Cross multiply
    788,557.60x = 1,183,009.20 × 389,389.60
  4. Step 4: Simplify right side
    788,557.60x = 460,651,479,184.32
  5. Step 5: Solve for x
    x = 460,651,479,184.32/788,557.60
  6. Step 6: Final answer
    x = 584,169.73

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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.