Home / 759,519.10-1,139,716.05-286,543.90

Finding the Fourth Proportional to 759,519.10, 1,139,716.05 and 286,543.90

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Solution

The fourth proportional to 759,519.10, 1,139,716.05 and 286,543.90 is: 429,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,519.10 : 1,139,716.05 = 286,543.90 : x
  2. Step 2: Convert to fraction form
    759,519.10/1,139,716.05 = 286,543.90/x
  3. Step 3: Cross multiply
    759,519.10x = 1,139,716.05 × 286,543.90
  4. Step 4: Simplify right side
    759,519.10x = 326,578,681,859.60
  5. Step 5: Solve for x
    x = 326,578,681,859.60/759,519.10
  6. Step 6: Final answer
    x = 429,980.87

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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.