Home / 759,864.40-1,139,796.37-286,439.05

Finding the Fourth Proportional to 759,864.40, 1,139,796.37 and 286,439.05

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Solution

The fourth proportional to 759,864.40, 1,139,796.37 and 286,439.05 is: 429,658.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,864.40 : 1,139,796.37 = 286,439.05 : x
  2. Step 2: Convert to fraction form
    759,864.40/1,139,796.37 = 286,439.05/x
  3. Step 3: Cross multiply
    759,864.40x = 1,139,796.37 × 286,439.05
  4. Step 4: Simplify right side
    759,864.40x = 326,482,189,416.25
  5. Step 5: Solve for x
    x = 326,482,189,416.25/759,864.40
  6. Step 6: Final answer
    x = 429,658.49

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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.