Home / 1,223,731.67-1,688,779.87-672,442.88

Finding the Fourth Proportional to 1,223,731.67, 1,688,779.87 and 672,442.88

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Solution

The fourth proportional to 1,223,731.67, 1,688,779.87 and 672,442.88 is: 927,987.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,731.67 : 1,688,779.87 = 672,442.88 : x
  2. Step 2: Convert to fraction form
    1,223,731.67/1,688,779.87 = 672,442.88/x
  3. Step 3: Cross multiply
    1,223,731.67x = 1,688,779.87 × 672,442.88
  4. Step 4: Simplify right side
    1,223,731.67x = 1,135,607,989,343.82
  5. Step 5: Solve for x
    x = 1,135,607,989,343.82/1,223,731.67
  6. Step 6: Final answer
    x = 927,987.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.