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Finding the Fourth Proportional to 675,486.51, 932,018.74 and 403,501.16

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Solution

The fourth proportional to 675,486.51, 932,018.74 and 403,501.16 is: 556,740.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,486.51 : 932,018.74 = 403,501.16 : x
  2. Step 2: Convert to fraction form
    675,486.51/932,018.74 = 403,501.16/x
  3. Step 3: Cross multiply
    675,486.51x = 932,018.74 × 403,501.16
  4. Step 4: Simplify right side
    675,486.51x = 376,070,644,053.03
  5. Step 5: Solve for x
    x = 376,070,644,053.03/675,486.51
  6. Step 6: Final answer
    x = 556,740.42

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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.