Home / 864,077.40-1,293,848.10-609,985.80

Finding the Fourth Proportional to 864,077.40, 1,293,848.10 and 609,985.80

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Solution

The fourth proportional to 864,077.40, 1,293,848.10 and 609,985.80 is: 913,377.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,077.40 : 1,293,848.10 = 609,985.80 : x
  2. Step 2: Convert to fraction form
    864,077.40/1,293,848.10 = 609,985.80/x
  3. Step 3: Cross multiply
    864,077.40x = 1,293,848.10 × 609,985.80
  4. Step 4: Simplify right side
    864,077.40x = 789,228,968,356.98
  5. Step 5: Solve for x
    x = 789,228,968,356.98/864,077.40
  6. Step 6: Final answer
    x = 913,377.63

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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.