Home / 977,420.61-1,465,670.84-378,662.13

Finding the Fourth Proportional to 977,420.61, 1,465,670.84 and 378,662.13

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Solution

The fourth proportional to 977,420.61, 1,465,670.84 and 378,662.13 is: 567,814.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,420.61 : 1,465,670.84 = 378,662.13 : x
  2. Step 2: Convert to fraction form
    977,420.61/1,465,670.84 = 378,662.13/x
  3. Step 3: Cross multiply
    977,420.61x = 1,465,670.84 × 378,662.13
  4. Step 4: Simplify right side
    977,420.61x = 554,994,040,259.98
  5. Step 5: Solve for x
    x = 554,994,040,259.98/977,420.61
  6. Step 6: Final answer
    x = 567,814.96

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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.