Home / 807,321.60-1,210,763.70-238,701.60

Finding the Fourth Proportional to 807,321.60, 1,210,763.70 and 238,701.60

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Solution

The fourth proportional to 807,321.60, 1,210,763.70 and 238,701.60 is: 357,987.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,321.60 : 1,210,763.70 = 238,701.60 : x
  2. Step 2: Convert to fraction form
    807,321.60/1,210,763.70 = 238,701.60/x
  3. Step 3: Cross multiply
    807,321.60x = 1,210,763.70 × 238,701.60
  4. Step 4: Simplify right side
    807,321.60x = 289,011,232,411.92
  5. Step 5: Solve for x
    x = 289,011,232,411.92/807,321.60
  6. Step 6: Final answer
    x = 357,987.74

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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.