Home / 688,420.90-1,032,347.11-298,952.65

Finding the Fourth Proportional to 688,420.90, 1,032,347.11 and 298,952.65

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Solution

The fourth proportional to 688,420.90, 1,032,347.11 and 298,952.65 is: 448,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,420.90 : 1,032,347.11 = 298,952.65 : x
  2. Step 2: Convert to fraction form
    688,420.90/1,032,347.11 = 298,952.65/x
  3. Step 3: Cross multiply
    688,420.90x = 1,032,347.11 × 298,952.65
  4. Step 4: Simplify right side
    688,420.90x = 308,622,904,254.34
  5. Step 5: Solve for x
    x = 308,622,904,254.34/688,420.90
  6. Step 6: Final answer
    x = 448,305.54

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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.