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Finding the Fourth Proportional to 655,457.08, 904,547.51 and 368,987.22

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Solution

The fourth proportional to 655,457.08, 904,547.51 and 368,987.22 is: 509,211.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,457.08 : 904,547.51 = 368,987.22 : x
  2. Step 2: Convert to fraction form
    655,457.08/904,547.51 = 368,987.22/x
  3. Step 3: Cross multiply
    655,457.08x = 904,547.51 × 368,987.22
  4. Step 4: Simplify right side
    655,457.08x = 333,766,471,072.82
  5. Step 5: Solve for x
    x = 333,766,471,072.82/655,457.08
  6. Step 6: Final answer
    x = 509,211.79

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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.