Home / 679,907.40-1,020,646.80-364,979.40

Finding the Fourth Proportional to 679,907.40, 1,020,646.80 and 364,979.40

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Solution

The fourth proportional to 679,907.40, 1,020,646.80 and 364,979.40 is: 547,890.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,907.40 : 1,020,646.80 = 364,979.40 : x
  2. Step 2: Convert to fraction form
    679,907.40/1,020,646.80 = 364,979.40/x
  3. Step 3: Cross multiply
    679,907.40x = 1,020,646.80 × 364,979.40
  4. Step 4: Simplify right side
    679,907.40x = 372,515,056,675.92
  5. Step 5: Solve for x
    x = 372,515,056,675.92/679,907.40
  6. Step 6: Final answer
    x = 547,890.87

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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.