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Finding the Fourth Proportional to 680,509.80, 1,020,764.70 and 181,873.80

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Solution

The fourth proportional to 680,509.80, 1,020,764.70 and 181,873.80 is: 272,810.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,509.80 : 1,020,764.70 = 181,873.80 : x
  2. Step 2: Convert to fraction form
    680,509.80/1,020,764.70 = 181,873.80/x
  3. Step 3: Cross multiply
    680,509.80x = 1,020,764.70 × 181,873.80
  4. Step 4: Simplify right side
    680,509.80x = 185,650,354,894.86
  5. Step 5: Solve for x
    x = 185,650,354,894.86/680,509.80
  6. Step 6: Final answer
    x = 272,810.70

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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.