Home / 654,899.04-903,775.32-400,390.56

Finding the Fourth Proportional to 654,899.04, 903,775.32 and 400,390.56

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Solution

The fourth proportional to 654,899.04, 903,775.32 and 400,390.56 is: 552,547.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,899.04 : 903,775.32 = 400,390.56 : x
  2. Step 2: Convert to fraction form
    654,899.04/903,775.32 = 400,390.56/x
  3. Step 3: Cross multiply
    654,899.04x = 903,775.32 × 400,390.56
  4. Step 4: Simplify right side
    654,899.04x = 361,863,106,488.98
  5. Step 5: Solve for x
    x = 361,863,106,488.98/654,899.04
  6. Step 6: Final answer
    x = 552,547.93

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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.