Home / 854,999.80-1,281,851.70-434,577.40

Finding the Fourth Proportional to 854,999.80, 1,281,851.70 and 434,577.40

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Solution

The fourth proportional to 854,999.80, 1,281,851.70 and 434,577.40 is: 651,536.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,999.80 : 1,281,851.70 = 434,577.40 : x
  2. Step 2: Convert to fraction form
    854,999.80/1,281,851.70 = 434,577.40/x
  3. Step 3: Cross multiply
    854,999.80x = 1,281,851.70 × 434,577.40
  4. Step 4: Simplify right side
    854,999.80x = 557,063,778,971.58
  5. Step 5: Solve for x
    x = 557,063,778,971.58/854,999.80
  6. Step 6: Final answer
    x = 651,536.74

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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.