Home / 810,539.80-1,214,205.90-710,812.60

Finding the Fourth Proportional to 810,539.80, 1,214,205.90 and 710,812.60

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Solution

The fourth proportional to 810,539.80, 1,214,205.90 and 710,812.60 is: 1,064,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,539.80 : 1,214,205.90 = 710,812.60 : x
  2. Step 2: Convert to fraction form
    810,539.80/1,214,205.90 = 710,812.60/x
  3. Step 3: Cross multiply
    810,539.80x = 1,214,205.90 × 710,812.60
  4. Step 4: Simplify right side
    810,539.80x = 863,072,852,714.34
  5. Step 5: Solve for x
    x = 863,072,852,714.34/810,539.80
  6. Step 6: Final answer
    x = 1,064,812.43

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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.