Home / 779,985.80-1,170,017.10-406,737.80

Finding the Fourth Proportional to 779,985.80, 1,170,017.10 and 406,737.80

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Solution

The fourth proportional to 779,985.80, 1,170,017.10 and 406,737.80 is: 610,126.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,985.80 : 1,170,017.10 = 406,737.80 : x
  2. Step 2: Convert to fraction form
    779,985.80/1,170,017.10 = 406,737.80/x
  3. Step 3: Cross multiply
    779,985.80x = 1,170,017.10 × 406,737.80
  4. Step 4: Simplify right side
    779,985.80x = 475,890,181,216.38
  5. Step 5: Solve for x
    x = 475,890,181,216.38/779,985.80
  6. Step 6: Final answer
    x = 610,126.72

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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.