Home / 692,069.10-1,036,985.85-391,656.30

Finding the Fourth Proportional to 692,069.10, 1,036,985.85 and 391,656.30

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Solution

The fourth proportional to 692,069.10, 1,036,985.85 and 391,656.30 is: 586,851.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,069.10 : 1,036,985.85 = 391,656.30 : x
  2. Step 2: Convert to fraction form
    692,069.10/1,036,985.85 = 391,656.30/x
  3. Step 3: Cross multiply
    692,069.10x = 1,036,985.85 × 391,656.30
  4. Step 4: Simplify right side
    692,069.10x = 406,142,041,163.36
  5. Step 5: Solve for x
    x = 406,142,041,163.36/692,069.10
  6. Step 6: Final answer
    x = 586,851.86

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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.