Home / 987,669.23-1,480,360.22-454,070.39

Finding the Fourth Proportional to 987,669.23, 1,480,360.22 and 454,070.39

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Solution

The fourth proportional to 987,669.23, 1,480,360.22 and 454,070.39 is: 680,579.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,669.23 : 1,480,360.22 = 454,070.39 : x
  2. Step 2: Convert to fraction form
    987,669.23/1,480,360.22 = 454,070.39/x
  3. Step 3: Cross multiply
    987,669.23x = 1,480,360.22 × 454,070.39
  4. Step 4: Simplify right side
    987,669.23x = 672,187,742,435.89
  5. Step 5: Solve for x
    x = 672,187,742,435.89/987,669.23
  6. Step 6: Final answer
    x = 680,579.82

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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.